Killer B DIY Holy Header Rotated Turbo Subaru WRX 2002-2014 / STI 2004-2021 | HH-DIY vendor_Wheel Mate the kit includes everything needed

the kit includes everything needed to get started

now you can easily learn the Exaust temperature & how your modifications will affect the engine performance

• Gasoline and alcohol compatible

Comes complete with all necessary mounting hardware and comprehensive installation instructions

Fast Motorsports has solved the problem for us by producing this heavy duty

Killer B DIY Holy Header Rotated Turbo Subaru WRX 2002-2014 / STI 2004-2021 | HH-DIY vendor_Wheel Mate the kit includes everything neededPart #: HH DIY The Killer B Motorsport Holy Header was developed using state of the art CAD software & simulations to determine optimal design to increase power in the mid to high RPM range. Short as possible primaries with a single secondary significantly decrease header volume allowing exhaust gas pressure to build quickly. Symmetrical 4 1 design maintains high and consistent exhaust velocity as RPMs rise. You can expect faster spool up time