Killer B Performance Headers -EJ Series - EL 4-1 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 as RPMs rise. You can expect faster spool up time compared to long primary/double secondary designs. A difference that you will immediately notice in throttle/boost response and the ability to hold more power higher into the revs.
Includes:
- Holy Header
- Up-Pipe
- V-Band Flange
SKU | HH4-1 |
---|---|
Vehicle Fitment | 2004+ STi, 2002-2014 WRX, 2004-2013 Forester XT, 2004-2009 Outback XT, 2004-2009 Legacy GT |
Standard Color | No |
Part Number | HH 4-1 |
Product Instruction |
For installation instructions click here |