SteamSpeed STX 58 Twin Turbos for BMW N54 aka "Stage 3" N54 on the FA20 platforms

on the FA20 platforms

4-port controllers are used with an aftermarket wastegate with ports on both sides of the wastegate's diaphragm

This turbo is designed to provide early torque for a more stock-like response but with loads more power and power holding throughout the power band instead of falling off on the top end

These FA20 turbos are stock location meaning they are a bolt on replacement for the OEM turbo

SteamSpeed STX 58 Twin Turbos for BMW N54 aka "Stage 3" N54 on the FA20 platformsThe SteamSpeed STX 58 twin turbos for BMW N54 is for making serious power all in a stock location package. How much power, in our testing, between 650 750 whp. Expect numbers around 650 whp for pump gas cars with supporting boltons and modest boost levels, or up 750 whp maxing the turbos out with high octane fuel or multi port meth injection. Regardless of how far you are going to take them, they are a lot of fun. It is no longer nessicary to switch