SteamSpeed STX 63 Turbo for Subaru WRX & STI Size:7cm² non-ported the SF 68 is designed

the SF 68 is designed to keep a close to stock-like response while enabling 150+ WHP gain over the stock turbo

SteamSpeed 3 port Electronic Boost Controller provides superior boost control over Subaru OEM spec 2 port boost controllers

76mm exducer

the STX 63 can in some cases be even more responsive than the OEM unit

Superseded by the all new SF 68

SteamSpeed STX 63 Turbo for Subaru WRX & STI Size:7cm² non-ported the SF 68 is designedIt 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