Killer B DIY Holy Header Rotated Turbo Subaru WRX 2002-2014 / STI 2004-2021 | HH-DIY vendor_Cosmis Wheels All necessary hardware is included

All necessary hardware is included for a complete and clean installation

In addition to receiving tightly matched injectors

This clutch offers comparable torque capacity as Stage 1

Nissan 350Z 2007-2009

Subaru STi 2004-2017

Killer B DIY Holy Header Rotated Turbo Subaru WRX 2002-2014 / STI 2004-2021 | HH-DIY vendor_Cosmis Wheels All necessary hardware is includedPart #: 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