SteamSpeed STX 71+ Turbo for Subaru WRX & STI 10cm² (ported) w/ 3" inlet BMW SteamSpeed 3 port Electronic Boost

SteamSpeed 3 port Electronic Boost Controller aids in superior boost control versus oem spec boost controllers

the STX is the perfect turbo for those looking fast-spooling response while still being capable of making 400-450 whp with supporting mods

but typically

Expect significant power gains especially above 5000 RPM with the the STX 63 being able to hold boost until redline

the STX is the perfect turbo for those looking fast-spooling response while still being capable of making 350-425whp with supporting mods

SteamSpeed STX 71+ Turbo for Subaru WRX & STI 10cm² (ported) w/ 3" inlet BMW SteamSpeed 3 port Electronic BoostIt is well known that upgrading your turbocharger with a larger SteamSpeed STX turbocharger is one of the most cost effective ways to increase power on your WRX STI; however, it is less known that sizing the turbocharger to match your performance goals has a huge impact on how well the turbo works with your other mods, how responsive your throttle is, and how fun your car is to drive. The good news is that we make a SteamSpeed STX turbo to fit nearly