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

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 GTKiller 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

enhancing braking performance and driver confidence

An opinion often expressed is "if the manufacturer put it there

Allows the turbocharger to breathe a larger volume of air without unstructions

Subaru cars have adopted multi-link suspension at the rear and traction by suspension is improved

A simple way to upgrade the appearance in your engine bay

All components designed

Pushing the Limits of ABS

Note: Does not include pivot or throw out bearing

Ideal for those of you who have upgraded to a GrimmSpeed Shift Knob

PERRIN powder coating coming in Neon Yellow and are accented with a wrinkled texture finish to match your other PERRIN parts

Will come assembled with top hats

Limited Lifetime Warranty