SteamSpeed 4-Port Boost Control Solenoid (BCS) Universal N54 The STX 67 is a

The STX 67 is a 49 lbs/min turbo based off of the Garrett GTX2867R compressor specs in a stock-location bolt-on package

Modifications:

If your turbo's wastegate is only one port

The SteamSpeed MHI TD04L (13T) is a direct OEM replacement turbo for the WRX 2002-2007 engineered to match or exceed the performance and durability of your stock MHI unit

The FA20 produces a ton more backpressure with these larger turbos than say the EJ25

SteamSpeed 4-Port Boost Control Solenoid (BCS) Universal N54 The STX 67 is aThe SteamSpeed 4 port Electronic Boost Controller ups the ante again. Our 3 port controller is vastly superior to the stock units, but our 4 port version goes further providing the maximum level of boost control available allowing more sophisticated boost control schemes allowing the tuner to have even more control and wider ranges of operation of the wastegate. Our 4 port controller can be used in many configurations, so consult your tuner to