Lease for as low as $/week
2002-2014 WRX / 2004+ STI 4-1 Holy Header w/EGT Bung by Killer B MotorSport
For the best selection of Killer B Motorsport parts (like a Killer B Motorsports Oil Baffle), there's no better place to buy than at MAPerformance. We carry the highest-quality selection of Killer B Motorsport parts on the internet. Shop from the best aftermarket wide range of Subaru performance products at the lowest price on the web, guaranteed thanks to the MAPerformance Price Match Guarantee.
This is the Killer B Motorsport 321 Stainless Steel Holy Header. This particular header will come with the 2-bolt up pipe option, and it will also come equipped with an EGT sensor bung on the number 4 cylinder pipe. This header is a great option for those of you looking to improve the sound and power throughout the entire RPM range.
Please Note: It may not fit some Forester, Outback, and Legacy models with the OEM oil pan and cooler
Features
- 347 stainless Thick-walled cast
- Short Length Equal Primaries
- Symmetrical Primary Design
- Smooth Mandrel Bends
- Thick-Walled 321 Stainless Steel Construction
- V-Band Up-Pipe W/EGT Bung
Benefits
- Less turbulence
- Less header volume and quick spool up
- Helps keep the pulse velocities high and consistent
- Can handle extreme heat
- Optimizes the exhaust flow throughout the entire RPM range
- Improves horsepower and torque
- Reduces the turbo lag
- Produces an aggressive exhaust note
Applications
- 2006 Saab 9-2X
- 2004-2013 Subaru Forester XT
- 2009-2010 Subaru Impreza 2.5GT
- 2002-2014 Subaru WRX
- 2004-2021 Subaru WRX STI
- 2005-2009 Subaru Legacy GT
- 2005-2009 Subaru Outback XT
What's In The Box?
- 1 - Steel Holy Header
- 1 - EGT Bung