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.
If product is in stock we ship same/next day.
If a product needs to be ordered in typical wait time is 1-2 weeks to bring in.
Shipping times vary depending if the part is in stock at our warehouse and which shipping option is chosen at checkout.