N55

Buyer's Guide: E9x 3 Series Reliability, Performance, & Driving Some refer to the BMW E90 (E9x) 3 series as one of the last great true drivers cars from BMW. The preceding E46 chassis was so good and left the E90 with big shoes to fill. Initially, many didn't believe the E9x chassis to be as good. However, with newest E46's nearing 15 years old the E90 is finally getting … [Read more...] about Ultimate E90 Buyer’s Guide: Reliability & Performance

N55 Upgraded Intake - E & F Chassis N55 Intakes Upgraded performance intakes are a great way to free up engine sound and power on turbo cars. The N55 is no exception. Performance intakes are one of several popular bolt-ons that can boost the N55 to the next level. In this guide, we will discuss the performance benefits of upgraded intakes and list a few great options on … [Read more...] about BMW N55 Upgraded Performance Intake Guide

BMW N55 Upgraded Intercooler (FMIC) Guide An often overlooked performance upgrade on the N55 is the cooling system. When you're focused on horsepower, it doesn't seem too appealing to spend $500 on a "mod" that doesn't really produce meaning performance gains. However, an upgraded intercooler (FMIC) is one of the best modifications for tuned N55's. Rather than being … [Read more...] about BMW N55 Upgraded Intercooler (FMIC) Guide

BMW N55 Upgraded Downpipe The exhaust downpipe is the first part of the exhaust system on the N55 engine. It bolts-up straight to the turbocharger and passes air from the turbo to the cat-back portion of the full exhaust system. The OEM downpipes have catalytic converters on them, for emissions purposes. However, the catalytic converters are extremely restrictive and … [Read more...] about BMW N55 Downpipes Guide: Catless vs. High-Flow

N55 Turbo Wastegates - EWG vs PWG What is the difference between PWG and EWG N55 engines? This question comes up often and is a big talking point regarding the N55's performance. EWG and PWG refer to the turbocharger wastegates. Though it sounds like a minor difference, the wastegates play an important role in tuning and power. Let's jump in and examine the pros, cons, and … [Read more...] about EWG vs PWG – BMW N55