ATP Turbo Bolt-On GT3582R (External Wastegate) Turbo Subaru 2002-2007 WRX / 2004-2019 STI
ATP External Wastegate Garrett Turbos ATP has taken their revolutionary bolt on Subaru turbochargers to the next level by offering a direct fitment external wastegate. The exhaust housing is cast with a flange designed for a Tial 44mm wastegate, while the internal wastagate is eliminated permanently. This setup allows you perfect boost control, and will prevent any boost spiking issues commonly associated with a smaller internal wastegate. Notes: Fuel system modifications & ECU tuning a required with these and any other aftermarket turbos. While these turbos will work with a stock-sized inlet, ATP recommends a 3" inlet. Dumptube and Tial 44mm wastegate are sold separately!