Grimmspeed Stage 1 Power Package WRX (2015-2019) Volkswagen or Crank Pulley will see

or Crank Pulley will see even better results

CNC bent and hand assembled before going to powder coating for a durable wrinkle black finish

-sourced T304 stainless steel

not better filtration) - Racing Dynamics filters are 6 layers for best filtration and performance

48-state legal catalytic converter and includes all components for a hassle-free installation with no modifications necessary

Grimmspeed Stage 1 Power Package WRX (2015-2019) Volkswagen or Crank Pulley will seeImprove the performance in Subaru WRX with the Grimmspeed Stage 1 Power Package. The stage 1 Power Package consists of an upgraded Stealthbox Cold Air Intake system that replaces the factory restrictive unit, and allows the turbocharger to breathe better which increases horsepower, torque, and improves throttle response. Additionally, Grimmspeed includes their 3 Port Electronic Boost Control Solenoid has been provided to improve boost control