Killer B Equal Length 4-1 Holy Header EJ Series 2-Bolt Wire In ECU's Lay-flat collar

Lay-flat collar

While small OEM turbochargers produce crankcase vacuum under boost

Manufactured and Welded In The USA – For consistency and top quality control

Fast and consistent response times

We recommend starting with a PWM Frequency of 20Hz for this Boost control solenoid

Killer B Equal Length 4-1 Holy Header EJ Series 2-Bolt Wire In ECU's Lay-flat collarThe Killer B Motorsport Holy Header was developed using state of the art CAD software & simulations to determine the optimal design for increasing 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