This page is dedicated to BMW Mod Guides. Guides range from 500+hp N54 bolt-ons, N54 port injection, S55 turbo guides, B58 downpipes, and plenty more. Check out all of the awesome BMW turbo engine performance content.
BMW’s boost pressure release system is controlled by a diverter valve instead of a traditional blow off valve. A diverter valve serves the same purpose as a blow off valve, although they function somewhat differently. N54’s come stock with diverter valves, mounted onto a chargepipe, which is responsible for routing air to the engine. As…
BMW’s N20 engine featured in the 228i, 328i, 428i, 528i, as well as other 28i variants, did not built up the greatest aftermarket and tuning reputation, as the engine has been touted as fragile. Although the N20 is not the strongest motor there is still plenty of power to be unleashed with a tune and…
We wrote a similar post for the N54, which seemed to be a popular and informative post for those looking to learn more about the engine’s capabilities. For those who read our post about the BMW N54, it should be noted the BMW N55 engine is not quite as capable as the N54, mod-for-mod, for…
The BMW N55 engine represented a big step forward in terms of BMW’s turbocharged engine formula. The N54 inline-6 that preceded the N55 in 35i model BMWs became both an icon and a black sheep due to its power potential and subsequent unreliability. The N55 resolved most of the major issues with the N54, but…
The B58 is the successor to the N54 and N55 engines, both of which were highly tune-able and able to make lots of horsepower with only a handful of supporting mods. The N54 takes the cake in regards to horsepower capabilities, but it had many engine problems as a result. The N55 platform was made…
Front mounted intercoolers are extremely important applications on turbocharged cars. Intercoolers cool the compressed air created from the turbochargers, reducing the temperature and increasing the density of the air that is fed into the engine. Cooling the air makes the air more oxygen rich, therefore improving the combustion in the engine by allowing more fuel…
The BMW N54 engine featured in the 135i, 335i, and 535i is one of the most tune-able engines ever. Some people call it the ‘2JZ’ of German engines, but we think the N54 is on a whole new level. The N54 engine has forged internals, meaning it can handle an immense amount of power without…
Tuning is without question the most important modification when it comes to extracting maximum performance from your N54 engine. Before purchasing a tune for your N54 it is important to consider the pros and cons of the available tunes on the market. This post will highlight the differences between the common N54 tunes and hopefully…
When you mention dual cone intakes or cold air intakes, you tend to get a lot of people that will criticize you by saying things like “all your doing is decreasing the longevity of your engine”, “its a pointless mod, it barely offers any horsepower gains”, “your engine is going to take in so much…
This guide is meant to serve as a guide for newcomers to the n54 tuning scene. The n54 twin turbo engine is beginning to capture a large tuning audience, as it is one of BMW’s most capable engines. If you already have experience with bolt-on tuning, visit our ‘N54 tuning guides’ category of the blog…
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