Killer B Motorsport 02-07 WRX-STi GD Air-Oil Separator Forged EJ Pistons

Killer B Motorsport 02-07 WRX-STi GD Air-Oil Separator Forged EJ PistonsThis is a product weve been asked to develop for many years, and in that time there has been a lot of research, engineering, simulations, development, testing, (and repeat), with several different Subaru engines and build types, including stock engines. This process has occurred within many different seasons, exposing the Air Oil Separator to extreme environmental and driving conditions (daily driving, auto X, drag racing, dyno testing, etc.), as well

plug-and-play installation with no modifications required

Rated to hold Approximately 430 ft/lbs of Torque

Not Holy Cow expensive

Comes with spacer to fit 5MT (for 5 speed transmissions)

A tune is not required for the listed applications at any power level

Boost control referenced to gear

GenV Wastegate Unit

Equip your engine with the best in forged pistons

View over 300 possible runtime parameters

These new 20G-XT compressor wheels really are a work of art: stronger yet lighter closed die forged aluminum alloy combined with state-of-the-art 5-axis CNC machining allows for tweaking the aero for even greater mass flow and efficiency from a given geometry

all 4 valve cover fittings

this inlet hose prevents collapse under high vacuum conditions while still providing necessary flex between the engine and intake