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Killer B EL 4-1 Holy Header/Up-Pipe - EGT Bung - 2004-2021 Subaru STI / 2002-2014 WRX, 2004-2013 Forester XT / 2004-2009 Outback XT / 2004-2009 Legacy GT PDM_battery-tie-downs-and-traysKiller 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
bringing the car closer to its performance potential
Our port injection kit for the 1
Fits the 2015-2021 Subaru WRX STI EJ257 VA chassis
hardware which includes banjo bolts
Four stainless tips through the GR's rear bumper are clean and symmetrical
and is easy on the wallet
Picklock grooves for easy lock removal
XClutch Ceramic Race Disc Clutch Kit - 2006-2017 Subaru WRX
After the closed deck conversion
Includes 12 studs
This rear roof spoiler installs just above your rear hatch glass for a simple installation
Offers extensive coverage with precise components