Killer B Equal Length 4-1 Holy Header and Up Pipe EJ Series FA20 Timing Parts Semi-Sequential

Semi-Sequential

Custom Outfront Motorsports spec EJ257 CP piston set (21cc)

5043 Beehive spring pressure:

and turn up higher boost pressures

designed to easily maximize the potential from your car

Killer B Equal Length 4-1 Holy Header and Up Pipe EJ Series FA20 Timing Parts Semi-SequentialThe 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