IAG Performance Unequal Length Header & Uppipe - Subaru Models (Inc. WRX 2002-2014 / STI 2004+) PDM_light-mounting-and-hardware The PCV system vents this

The PCV system vents this blow-by back through the intake to be burned in the engine

NOW YOU CAN ADJUST THE DAMPING ON YOUR REAR COILOVERS WITHOUT BEING A CONTORTIONIST

Available in multiple knob colors and styles — see other listings

Allows you to adjust the damping settings without having to remove interior components

The slots in the design will expel heat and brake pad residue to make for a clean surface contact between the brake pad and the rotor

IAG Performance Unequal Length Header & Uppipe - Subaru Models (Inc. WRX 2002-2014 / STI 2004+) PDM_light-mounting-and-hardware The PCV system vents thisThe Unequal Length Header and Up Pipe Package will increase the exhaust flow in the Subaru WRX STI. IAG Performance Unequal Length Header & Up Pipe Subaru Models inc. 2002 2014 WRX 2004=2020 STI Specs: Durable stainless steel construction on both header and up pipe Unequal length layout Smooth mandrel bends Increased piping diameter Includes 3 bolt up pipe Increases horsepower Increases torque Produces the aggressive Subaru rumble Improves throttle