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Use Coupon Code BOOST5 at Checkout!

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GrimmSpeed Stage 1 Power Package Red - 2015-2021 WRX

SKU: GRM 191010

Improve the performance in your vehicle 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 response. When combined with a qual. . . Show More >

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