Killer B 2-Bolt EL 4-1 Holy Header Subaru Sti

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 significantly decrease header volume allowing exhaust gas pressure to build quickly. 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 you will immediately notice in throttle/boost response and the ability to hold more power higher into the revs.

Features:

• Works with any 2-Bolt Up-Pipe, including rotated
• Two-Bolt Reduced cost!
• Up-Pipe not included

• Subaru Sti