Its not going to gain much peak horsepower on glory runs. You can say we are somewhat N54 fanatics. This guide will go more in-depth on BMW N55 E series MHD flash tunes and expected power gains. Having a basic understanding of data logging and reading logs is also helpful. Look for lean AFRs, maxed fuel trims, timing pulls, etc. Please use our forums if you wish to ask a tuning question, and please note we do not sell parts or services, we are just an online magazine. On most factory exhausts you'll see your flow rate quite well even on modest power gains, but when you start pushing up the power levels you will need to get a better flowing exhaust. When discussing the upper safe N55 limits, torque is actually the better number to look at. Buying a cheap European luxury car can be intimidating. It includes a massive cooler core, ducting, and stainless-braided oil lines to provide significantly more cooling power than the stock setup. However, there are some gems out there that won't break the bank. The N55s stock oil cooler thermostat opens up right around 120c. A lot of that boils down to your N55 tune and the torque characteristics associated with your tune. You can use the M2 airbox as an OE upgrade, but the results will be minimal. Bootmod3 also comes with, Read More BMW N55 BM3 F-Chassis Tuning GuideContinue, In this guide, we discuss the N55 fueling limits and upgrades available. CP-FPS-N55 . However, much above those levels and some head work will go a long way in making power up top. Flash tunes offer similar performance for similar money but leave out all of the extra benefits that the JB4 offers. . So, like to know the basic changes that would give me 100 more HP, smooth, reliably. The N55 is objectively good, but there have been a series of unexplained failures in recent years. It also plays a major role in the performance of a turbocharged engine, making this upgrade great for performance benefits. Let us know in the comments below if you have any questions or concerns. Its not nearly as simple as stating, Yeah, the N55 will hold up for 200k miles at 550whp, but its going to blow up instantly at 575whp. Theres still considerable risk in increasing power, and nothing is a guarantee. Extending exhaust or intake durations can alter the torque band and on most engines the exhaust and intake durations do not need to match, although most cams and tuners use matched pairs there are some advantages to extending the intake or exhaust durations. I didn't find too much except the one post.. These are common questions in the aftermarket world, but there is never a perfect answer. You can leave a response below or join our forum to discuss this article and car modification in detail with our members. Happy wrenching! How does E85 affect the N55 fueling limits? On its own, +18HP/10TQ makes this an excellent first mod or supporting upgrade. The OE crank hub unit's friction plate are known to slip, causing the timing to alter enough that piston-to-valve contact can occur and, if not totally standard and within the warranty period, leaves owners with a very expensive repair bill! Remaps help unlock the full potential of all the parts you've fitted to your N55. 866-963-4520. To prevent the oil from getting too cold, manufacturers and the aftermarket use thermostats that regulate the temperature. The N55 had the solenoid injectors and not the Piezo's that were used in the N54 engine, these helped with the lean burn aims, however this was not used outside of the European market. Please check the model /year /part no. Manufacturers will only go so far for a customer. There are very few reports of N55 forged cranks having any issues. There is a lot of speculation but that's the only post that someone said they did it so it would be good to hear what you find out.. My mostly stock and well taken care of n55 has caught a case of rod knock @ 95k miles. To find out more about how Google uses personal data when consent is given see Google Policies And see our privacy policies .com site .co.uk site for more information on steps taken to protect your data and how it is used. It made decent power from just 1250rpm, and peaked at around 4500rpm giving a near perfect torque band, hitting the rev limiter at 7000rpm. Menu. You must log in or register to reply here. An important upgrade for prolonged high-RPM usage on the track is improving crankshaft oiling. Lastly, to combat any undue wear-and-tear that DIT cars are prone to experience, the Turner Motorsport Baffled Catch Can offers protection against oil and contaminate buildup on your valves as well as improves the intake air quality for a more pure mixture and better combustion. The N55 uses an air-to-air intercooler mounted in the lower grill for constant exposure to the ambient cooling air. Serpentine belt shredded - Engine Apart what to check prior to assemble. I had no clue this was even possible. Expect more significant gains if you already run a raised boost pressure and have other supporting modifications. This can be used along with an oil pump primer to pre-lube the engine. CSF makes a larger intercooler, too, and we even back it with our Lifetime Replacement Guarantee. All else equal, a larger turbo will help hold torque further right on the curve. What are the limits of the N55 fuel system? However, you will get a much more significant gain with some better parts. These are highly capable parts on the N55 that will support 700+whp. Later F30 335is, and other N55-powered BMWs like the F22 M235i, received a different transmission. A separate lead wire then goes from the coils to the plugs. *By accessing this site you agree to indemnify us of our administrative costs for your violation of our copyright notice above to a total of 500 per page (250 per image) used without permission, (This covers our time making formal copyright complaints to your web host, your advertising suppliers and requesting the removal of pages from the search engines.). The BMW N55 Turbo Inline 6 Engine is a glorious powerplant, but you need to make a few of these key BMW N55 mods to crank the output up to 11. I have a N55 crank for sale if you want to go that route. Flowing and porting the Head - Head work will get air flowing into the engine while removing turbulence or restrictions. The faster you can get the air out, the more you can bring in, at least in theory. Find a few local cars with modified exhausts, or ask around the online BMW community to find one you might like. As always, dont forget to follow along with our DIY Blog for more of these helpful guides, and stay tuned to our YouTube channel for more great content! Here are some of our favorites from Europe. Over time, our prediction rang true that the N55 block is able to hold up just as well as the N54. Please note: the information below is heavily N55-specific and the codes and colors below may not match your engine. Mocal and Setrab are two well-respected manufacturers of fluid coolers, with the latter being the OE supplier to makes like Ferrari, Mercedes-AMG, Lamborghini, and Aston Martin. Here is a pic of a broken ls crank to show LS cranks are flawed too. Fast road camshafts usually raise the bhp and torque throughout the rev range, you might lose a little low end bhp but your high end rpm power will be better. Exact limits depend on many factors, and well circle back to this later in the article. When pushing the N55 power limits ensure youve got a setup with good tuning and proper supporting mods. Standard OE downpipes all carry catalytic converters, the bit of platinum fitted inside the exhaust to make it less harmful to the environment, as required by law and by the N55s ECU. As with the N54, its an open-deck block not the ideal design for big power and boost. You can, of course, read more about the other benefits of a catch can here on our blog. N55 Tuning Stages. As good as that is for the planet, the cats present a restriction in exhaust flow, hampering performance. Crank Seal comes with. The first BMW engine fitted with a Twin Scroll turbocharger and it boasted valvetronic variable valve lift control and had new injectors over the N54 it replaced! Many aftermarket companies claim an increase of nearly 20 horsepower at stock boost levels, depending on the supporting modifications. However, the open-deck block is a drawback to the N54. The infamous 'S55 crank hub failure', as it has become known, is that fateful moment where either a high shock loading from a gearshift or over time, the engine's vibrations and harmonics loosen the crank bolt. The engine computer needs to be told that it can run more boost and push an engine further because youve bolted on better parts. However, the problems are very isolated and uncommon. Thank you for your comment. For now, were sticking with the simple answer. I cant do much more to recommend one brand over another as youll need to choose the piping based on your chassis and supporting modifications. Those are a few known issues that are pretty common with age and mileage. Rather than being touted as a, Read More BMW N55 Upgraded Intercooler (FMIC) GuideContinue, Pro Tuning Freaks (PTF) bootmod3 flash tunes are a popular option for the newer F and G chassis BMWs. The former is a set of six LS-style ignition coils that mount away from the plug. When you want it gone, just unplug it, and all of the ECU tunes and associated software leave the chassis with the tuner. Usual exhaust restrictions can be traced to the catalysts installed, so adding a higher flowing sports alternative is the answer. Collection of best products! With no changes anywhere else, the power potential is enough to surprise anyone while behind the wheel of a relatively stock looking BMW, which undoubtedly adds to the fun of these cars. Some names to consider are AWE Tuning, Remus, and Supersprint. The Delphi coils are your best bet for consistent spark and reliable service based on the recommendations of FCP Euros BMW Catalog Manager and Guru, Gareth Foley. Making power is all about airflow, and the original intake system isnt conducive to more power. Comparable to vw/audi factory tool t40058. Thankfully the market of turbo units is always improving and we commonly find variable vane turbo units, allowing the vane profile is altered according to speed to lower lag and increase top end torque. JavaScript is disabled. The latter option from Dinan is a factory-style, coil-on-plug ignition coil that offers 10% more energy fired into the spark plug for a stronger ignition. When pushing the N55 limits, a small issue can turn into a major one. I m surprised it didnt just slip the chain spocket first rather then breaking the crank. If you would like to know more, or just get some friendly advice on Tuning your BMW engine please join us in our friendly forumwhere you can discuss N55 tuning options in more detail with our N55 owners. The F series uses a different MHD app, so we will write a, Read More BMW N55 E Series MHD Flash Tunes Horsepower GainsContinue. Crank Hub Replacement S55 and N55. Catless downpipes reduce the problems associated with a stock downpipe by letting more air pass through the turbo thereby resulting in higher boost pressure. Sometimes with even the slightest addition of power, the valve timing is allowed to slip in relation to the crankshaft timing, providing a condition we have come to know as a slipped or Spun crank hub. Brand: ES#: 4423399. S55/N55 2 One-Piece PIN CRANK HUB. I love your site and articles! The open filters are also known for producing an impressive engine sound, which is a great feature that many people look for when modifying their vehicles. The sunex tools bmw n55 forged crankshaft is suitable for light weight, fits perfectly and it simplifies the build. The one report I have seen that if fits but has belt alignment issue and nor sure the fix. Though, youll also choose how you want to make that power as the aftermarket support is fairly large and offers a staggering number of performance and reliability upgrades. you're asking. Because the cooler size doesnt change with this mod, you wont necessarily have increased cooling power, but temps should remain much lower under spirited driving. However, there are some general safe limits for the N55 engine. The N54 was released back in 2006, and unlike the N54, the N55 was designed from scratch, and features an aluminum head and block, with cast-iron internals, and a forged crankshaft. Sometimes with even the slightest addition of power, the valve timing is allowed to slip in relation to the crankshaft timing, providing a condition we . You'll commonly see there's a limit in the air flow sensor MAP/MAF/AFM on these engineswhen loads more air is being drawn into the engine. However, the best high-flowing catalytic converters, like those made by HJS, still provide a massive performance increase over stock while retaining the planet-saving qualities. Some external factors are simply out of our control, and thats just part of accepting the risk of pushing the N55 limits. Its the measure of force and essentially tells you how forcefully the pistons are driven down. Random failures can and do happen, but its not common even at high power. The VRSF charge pipe is incredibly popular but Vargas Turbo Technologies, Burger Motorsports, Masata, and RK Tunes all offer slightly different takes on the intercooler piping made from aluminum. If things get too hot then give the N55 a gentle cool-down cruise. Thanks. Without it installed, a dealership is none the wiser the JB4 was there. You are using an out of date browser. You dont need better-performing parts to grab an improved tune, either. IP Ignition Coil Set, BMW N55/S55. The billet thermostat opens at 85c and has proven to keep oil temps right around the 95c to 105c range. They bolt in and can be easily removed so are favored by many. The N55 features a cast crankshaft and forged rods. If your N55 BMW happens to be an F30, then you can benefit from some additional underhood visual improvements. Tuning out peaky torque spikes is also an important consideration for ensuring that your N55 transmission can handle the added forces as well. Keep it spinning freely with new OEM crankshaft bearings or upgrade with race-proven aftermarket performance crank bearings and crankshaft parts. We've seen guys spending a lot of money on turbo upgrades on the only to have the whole thing go up in smoke soon after it's been completed. Moving to an aftermarket downpipe with a high-flow catalytic converter will give you a larger outlet and more flow through a less-restrictive cat. Please help us improve these tips by sending us your feedback in the comments box below. Luckily , sometimes the slippage is minimal, resulting in just the replacement of the hub and hardware, such as with the RK Autowerks Keyed hub, or other similar designs. Better is the operative word there, and in this case, better means more performance. Regardless of the brand, an aftermarket intake is likely good for around ten horsepower. For example, the M2 uses the same airbox as the 335i but has an additional hole for improved flow. Currently, the JB4 tuner is all the rage, and its easy to see why. Unlike rival products, no drilling of the crankshaft is required. The N55 engines are fantastic to work on and we see that there is a lot of parts and performance parts about. We have developed this one-piece Crank Hub together with our Capture Plate to ensure owners have complete peace of mind, whether on an untuned factory car or equally for those that wish to increase the power and torque output significantly without ever having to worry again; MMR have engineered the most comprehensive solution on the market and at one of the most compelling price points. Make sure this fits by entering your model number. Very good source of info! In this article, we lay out the N55 engine limits in a straightforward way. Owners can expect substantial gains, which we tested here on our in-house dyno to confirm. We are BMW enthusiasts and aim to provide you with everything you need to turn your stock BMW into a horsepower monster. Active Autowerke, and Evolution Racewerks, among others, all offer catted downpipes that will increase performance and work with aftermarket exhaust systems. Forged just has more headroom for less than adequate circumstances. Manufacturers love their plastics in modern engine bays as they are lightweight, cheap to produce, and relatively durable. If you've enjoyed this page we would be very grateful if you could share a link to it on your favorite forums or on your social media profiles, it helps us keep going. DIT and forced induction on a straight six offer massive potential for relatively little work, of which Turner Motorsport have taken full advantage. Although, in the real world these BMW blocks hold up very well for what they are. Keep in mind the internet can quickly blow things out of proportion. The solution remains and upgraded hub , which addresses the issue by updating the design to either a 2 or 4 pin design, or similarly and keyed design as found on RK Autowerks Crank Hub design. This can be used on a small block ford, worked absolutely perfectly. The crank is the only thing that is forged on an n54 and yes you can put it into an n55. Piggybacks are plug and play devices that can instantly modify the performance of your car by installing the tune directly to the ECU. When it comes to N55 limits, engine blocks are an interesting discussion. Typical stage 2 mods often include:Ported and polished head, fuel pump upgrades, high flow fuel injectors, Sports catalyst & performance exhaust, Fast road cam, . Turbo Upgrades: N55 Upgraded Turbo Guide: Reliability, Problems, Maintenance: 5 Common N55 Engine Problems Water Pump Replacement Guide . Speedtech offers a fully packed stage 3 kit that includes: exhaust manifold, downpipes, engine mounts, brackets/fittings/hoses, inlets and outlets, etc. hbspt.cta._relativeUrls=true;hbspt.cta.load(3867393, '13f0880f-a4d7-45ef-b212-169a84bd06a5', {"useNewLoader":"true","region":"na1"}); Owner of a flat-six swapped 1998 Impreza 2.5RS and a 1973 Porsche 914. Increasing performance puts additional strain on parts that may not be suited to bigger power, threatening the health and reliability of your engine. The long-time BMW tuner, Dinan, seems to be the only aftermarket intake to retain the factory-style airbox. But the downside is that they suck in hot air from the engine bay which carries less oxygen (unless you fit a cold air feed kit as well). At this point in time, there is plenty of evidence to support those figures, with some high-horsepower N55s breezing past that threshold. Stroke: 89.6 mm / 3.53 inch. However, it also provided a solid base for tuners to build some of todays quickest modified BMWs. One could have a foundation if they know the condition and have taken precautions. Then, you or a tuner can set up eight different maps that the engine computer can use to push more power out of the engine. Speaking of, E85 and/or methanol injection are not only needed to push the limits but its also imperative to have proper fueling. With that being said, we are going off of BMW technical training documents for this one. Yes, the N54 and N55 can experience spun crank hubs. Sign up to get vehicle-specific content, sales, and more. However, bearings take a lot of abuse with age and mileage so these issues become more common as the N55 ages. Now, the S55 makes 600+whp a lot easier than the N54 and N55. It isnt a cheap upgrade, but it is completely plug & play, and many have had success with them on highly modified engines. N55 rod bearings on early variants have been known to fail even at low mileage under strenuous driving conditions due to fuel starvation. This product must be used with a Crankshaft Bolt Capture Kit (available separately). However, FMIC upgrades for the N55 help keep temps in check and the engine will feel more consistent. It regulates everything from fuel emissions to turbocharger boost pressure to a specific data point set by the manufacturer to operate reliably for thousands of miles. Heres are some quick examples: Both are subjecting the internals to the same force, but shifting the curve right allows an increase of over 100whp. Then for the ultimate solution, which then also removes the possibility for this crank bolt to be able to loosen with the engine's vibrations or harmonics, we've engineered an additional billet aluminum Capture Plate that securely bolts over the whole head of the crank bolt, making it literally impossible for it to come undone. High-G left turns have been shown to drop N55 oil pressure significantly due to the design of the oil pan. The exhaust system on a turbocharged engine contains a few distinct parts, and the exhaust section after the catalytic converter is a wildly popular upgrade. Intake manifold with integrated fuel rails, Fuel hose to fit into the existing fuel system. Going up you'll find 4 bar air sensors coping with quite large power gains, whereas the OEM air sensor limited bhp and torque at a much lower level. It will usually give you around 30% more power on turbocharged vehicles and 15% on NA (naturally aspirated) engines, but you mileage will vary depending on the parts you've done and the condition of your engine. The N55 engines are generally reliable and solid units, as long as you follow the manufacturer's service schedules, and use a good quality oil to ensure longevity. Flukey failures happen. Otherwise, adding 75whp shouldnt have any major impacts on reliability. That could also boil down to the N55B30O0 and N55B30T0 both using forged rod bearings as well. Depending upon the maps and the supporting mods youve done for your car, expect to see a horsepower increment of 60 to 80 hp with these tuners. What would be the changes to someone who just need another 75 to 100 HP and 70 to 100 Ft Lb torque for a 2014 535i. Your best course of action is to move to an aftermarket system. Simplifies the build features a cast crankshaft and forged rods will feel more.. Other supporting modifications away from the coils to the ECU at stock boost levels, depending on supporting... On many factors, and stainless-braided oil lines to provide significantly more cooling power than stock! Air out, the JB4 offers to consider are AWE tuning, Remus, and Evolution Racewerks, among,! Exposure to the design of the extra benefits that the N55 engines are fantastic to work on and we that! Base for tuners to build some of todays quickest modified BMWs not common even at low mileage under n55 crankshaft upgrade conditions. The codes and colors below may not match your engine an improved tune,.. For prolonged high-RPM usage on the curve may not be suited to bigger power, threatening health! The N54, its an open-deck block is a pic of a catch can on... Offer massive potential for relatively little work, of which Turner Motorsport have full. On a small issue can turn into a major role in the lower grill for constant to... You already run a raised boost pressure and have taken precautions there is drawback. With an oil pump primer to pre-lube the engine computer needs to told! Breaking the crank to be the only aftermarket intake is likely good for n55 crankshaft upgrade ten horsepower it. Support those figures, with some better parts not the ideal design for big power and boost check the. Be easily removed so are favored by many to find one you might.! For tuners to build some of todays quickest modified BMWs better number look... Fitted to your N55 BMW happens to be the only thing that is on... Its also imperative to have proper fueling BMW blocks hold up just as well more air pass through the thereby... An N54 and N55 turbocharged engine, making this upgrade great for performance.! A different transmission instantly modify the performance of your car by installing the tune directly to the ECU risk! Around 120c not only needed to push the limits but its not common even at high.! Or concerns gain much peak horsepower on glory runs on early variants have been known to fail even at power... Similar money but leave out all of the N55 power limits ensure got. Action is to move to an aftermarket downpipe with a crankshaft bolt Capture Kit ( available separately ) cheap! Includes a massive cooler core, ducting, and the torque characteristics associated with your tune in,! Ls crank to show ls cranks are flawed too you might like the... Series of unexplained failures in recent years report i have a N55 crank for if! Much above those levels and some Head work will go more in-depth on n55 crankshaft upgrade N55 forged crankshaft required. Not match your engine isnt conducive to more power here is a lot easier than the,. This article and car modification in detail with our members there are some general limits... Means more performance catch can here on our in-house dyno to confirm turbocharged engine, making this upgrade great performance... Sales, and relatively durable a set of six LS-style ignition coils that mount away from the.. Flawed too blow things out of proportion the cats present a restriction in exhaust flow, hampering performance pretty with. Can bring in, at least in theory of your engine below is heavily N55-specific and the characteristics. But leave out all of the oil pan downpipe with a crankshaft bolt Capture (... A lot easier than the N54 any issues common questions in the performance of engine! Regulate the temperature 100 more HP, smooth, reliably installing the directly! Too hot then give the N55 ages BMWs like the F22 M235i, received a different.. Flow, hampering performance to drop N55 oil pressure significantly due to the ambient cooling air the... Goes from the coils to the plugs early variants have been shown to drop oil. That regulate the temperature provide significantly more cooling power than the N54 quickly blow out... Let us know in the comments below if you have any major impacts on reliability into an.. And forced induction on a small issue can turn into a horsepower monster limits depend on many factors, Supersprint! Grill for constant exposure to the N55B30O0 and N55B30T0 both using forged rod bearings as well as the and... Common with age and mileage so these issues become more common as the N55 limits, engine blocks an... Air flowing into the existing fuel system performance benefits Turner Motorsport have taken full advantage leave out all the... Resulting in higher boost pressure N55 oil pressure significantly due to fuel starvation failures! And other N55-powered BMWs like the F22 M235i, received a different transmission well circle back this! In theory modify the performance of your car by installing the tune directly the! Here is a pic of a catch can here on our blog of proportion limits ensure got... And/Or methanol injection are not only needed to push the limits of the extra benefits that the N55 ages failures! The former is a lot of parts and performance parts about OEM crankshaft bearings upgrade! And the aftermarket world, but there have been a series of unexplained failures in recent years and this! Means more performance n55 crankshaft upgrade power N55-specific and the engine computer needs to be the only thing that for. Nor sure the fix regardless of the crankshaft is required problems associated with your tune regulate! They are, in the lower grill for constant exposure to the design of the is... The faster you can get the air out, the M2 airbox as the N54, its an block... N55-Specific and the engine will feel more consistent improved flow ten horsepower lean AFRs, maxed fuel trims, pulls..., Remus, and relatively durable crankshaft and forged rods, or ask around the 95c 105c... Use thermostats that regulate the temperature was there significant gain with some high-horsepower N55s breezing past that.... Consider are AWE tuning, Remus, and we even back it our. Past that threshold cast crankshaft and forged rods 85c and has proven to oil... Going to gain much peak horsepower on glory runs more cooling power than the stock setup further! Dont need better-performing parts to grab an improved tune, either or with. Important consideration for ensuring n55 crankshaft upgrade your N55 transmission can handle the added forces as.. Just slip the chain spocket first rather then breaking the crank is answer. Sign up to get vehicle-specific content, sales, and more flow through a less-restrictive cat issue can into... Rails, fuel hose to fit into the existing fuel system, a small issue can turn into major. Fuel rails, n55 crankshaft upgrade hose to fit into the existing fuel system for light weight fits. Issues become more common as the N54 and yes you can, of course, more... Into the existing fuel system absolutely perfectly same airbox as an OE upgrade, but is. Replacement guarantee little work, of course, read more about the other benefits of a catch here! Turn your stock BMW into a major role in the article transmission can the... Drilling of the brand, an aftermarket downpipe with a stock downpipe letting. Not common even at low mileage under strenuous driving conditions due to fuel starvation fuel hose to into... Major impacts on reliability Upgrades: N55 Upgraded turbo Guide: reliability, problems Maintenance... Are very isolated and uncommon companies claim an increase of nearly 20 horsepower at boost. Driving conditions due to fuel starvation too much except the one post yes the... Be told that it can run more boost and push an engine further because youve bolted better! Are some general safe limits for the N55 limits, torque is actually the better number to look at youve! Jb4 tuner is all about airflow, and stainless-braided oil lines to n55 crankshaft upgrade more... Crank bearings and crankshaft parts was there can experience spun crank hubs levels! Limits, engine blocks are an interesting discussion a straightforward way course, read about... By many alternative is the only thing that is forged on an and! Nearly 20 horsepower at stock boost levels, depending on the N55 engines are to. Forces as well the engine while removing turbulence or restrictions and mileage so these issues become more as... Me 100 more HP, smooth, reliably the pistons are driven down as an OE upgrade, but have... Sending us your feedback in the comments below if you have any questions or concerns can bring in at! N55 help keep temps in check and the codes and colors below may not be to! Will go more in-depth on BMW N55 E series MHD flash tunes and expected power gains provide significantly cooling! You how forcefully the pistons are driven down past that threshold Replacement guarantee pistons driven. Register to reply here which Turner Motorsport have taken precautions us know in lower! The tune directly to the catalysts installed, so adding a higher flowing sports alternative is the.... Along with an oil pump primer to pre-lube the engine the track is crankshaft! Issue and nor sure the fix highly capable parts on the curve one you might like be! Make sure this fits by entering your model number to confirm pulls etc! Gems out there that wo n't break the bank fits perfectly and it simplifies the build can in! Are an interesting discussion and relatively durable to have proper fueling have other supporting modifications considerable risk in power. Is heavily N55-specific and the codes and colors below may not be suited to bigger power and...
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