Killer B EL 4-1 Holy Header/Up-Pipe - w/ SwainTech Coating & EGT Bung - 2004-2021 Subaru STI / 2002-2014 WRX, 2004-2013 Forester XT / 2004-2009 Outback XT / 2004-2009 Legacy GT Cobb Accessports Wrap yourself in HKS luxury

Wrap yourself in HKS luxury and honor its legacy with each use of the HKS Big Towel Oil Color

Designed to fit most standard valve stems

especially at higher horsepower levels

Simple features like Preset Colors make it easy to use

Description: HD/Race Rigid 6 Pad

Killer B EL 4-1 Holy Header/Up-Pipe - w/ SwainTech Coating & EGT Bung - 2004-2021 Subaru STI / 2002-2014 WRX, 2004-2013 Forester XT / 2004-2009 Outback XT / 2004-2009 Legacy GT Cobb Accessports Wrap yourself in HKS luxuryKiller B Motorsport 321 Stainless Holy Header Up Pipe The Killer B Motorsport Holy Header was developed using state of the art CAD software & simulations to determine optimal design to increase power as much as possible throughout the rev range. Short as possible primaries with a single secondary decrease header volume significantly, allowing exhaust gas pressure to quickly build. Symmetrical 4 1 design maintains high and consistent exhaust velocity