BMW M54 Header Upgrade Guide
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BMW M54 Header Upgrade Guide

Most owners of M54-powered BMWs will attest that the factory exhaust system is overly restrictive. The factory M54 exhaust headers are severely bottlenecked near the mounting flange, making it more difficult for exhaust gasses to escape through the exhaust system. Reduced power, torque, and throttle response are the results.  Aftermarket, high-flow headers are the easiest…

BMW F30 Coilover Upgrade Guide

BMW F30 Coilover Upgrade Guide

Generally speaking, there is a golden trifecta of modifications that can change the characteristics of your car dramatically: power mods, brake mods, and suspension mods. Of the three, suspension modifications are perhaps the most bang for your buck in terms of transforming money into enjoyment. This is true for most performance-oriented vehicles, F30 BMWs included….

BMW S55 M2, M3, M4 Water Methanol Injection (WMI) Guide
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BMW S55 M2, M3, M4 Water Methanol Injection (WMI) Guide

Finally, we’re getting around to writing about water methanol injection for the S55 M2, M3, and M4. WMI acts as additional fueling for the BMW S55, and also offers cooler intake temps. There are several other benefits to WMI that we’ll jump into in this guide. However, there are also a few risks when running…

BMW N55 WMI – N55 Water Methanol Injection Guide
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BMW N55 WMI – N55 Water Methanol Injection Guide

We finally wrote some methanol injection guides for the N54 and B58 engines a couple of months back. Now it’s time to show the N55 some love and discuss water-methanol injection. It’s an excellent source of fueling for the N55, and also helps the engine run cooler. There are, however, some risks to running meth…