ATP Turbo Bolt-On GT3076R (External Wastegate) Turbo Subaru 2002-2007 WRX / 2004-2019 STI

ATP describes the GT3076R as "the right tool to do 500+ HP job." This turbo can support 500+ horsepower on the 2.5L. While the 3076R has a little more lag than the smaller units (it makes boost about 400RPMs later than the GT3071R), but it makes more top-end power. We do not recommend this turbo for 2.0L cars, unless they are full-race, built-block applications with head work. ATP's WRX & STi GT3076R is the modern "GT30R" and not the sporatically named -10, -11, -12, -13, -14 series from the old days misused and abused as "GT30's". If you're looking for a 500hp turbo for your WRX or STi that is streetable, and has a decent powerband, look no further. The GT3076R has a 60mm turbine wheel with an 84 trim and 76.2mm, 56 trim compressor wheel In addition, ATP reccomends a higher flowing 3" turbo inlet, like the Perrin, Agency Power or APS. If you must use a stock-sized inlet, you will need to source a 2.4" to 3" reduction coupler, as the ATP turbos have a 3" inlet.We recommend using a