AEM Wrinkle Red Cold Air Intake Subaru WRX STI 2015-2017 | 21-735WR Vehicle Model Note: This valve is for

Note: This valve is for recirculation only and can not vent to atmosphere

Bump-steer is the concept of bumps or imperfections in the road causing a car to steer off-track on its own without any driver input

The increased surface area (9

Spring Rates: (F) 12kg/mm (R) 8kg/mm

requiring zero modifications to your vehicle

AEM Wrinkle Red Cold Air Intake Subaru WRX STI 2015-2017 | 21-735WR Vehicle Model Note: This valve is forFitment: 2015 2017 STi ONLY The AEM 21 735WR Performance Cold Air Intake System produces horsepower and torque gains by replacing your vehicle's restrictive factory air filter and air intake housing. This air intake system was designed, tuned and dyno tested to fit specific Subaru WRX STI models. Air enters the system through an oversized AEM Dryflow synthetic washable air filter for outstanding air flow, filtration and performance. The air filter is