Killer B Motorsport Air Oil Separator 08-14 Subaru Impreza WRX & 08+ STI - 05-09 OXT - 05-09 LGT Sensors The head flanges of our

The head flanges of our header are CNC cut and faced from a 1/2in thick piece of 304 stainless steel

Diagnostic Information

Will adapt to 091

Part Number: SB5137-905

Block Machining for Outfront

Killer B Motorsport Air Oil Separator 08-14 Subaru Impreza WRX & 08+ STI - 05-09 OXT - 05-09 LGT Sensors The head flanges of ourThis 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