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Replace the restrictive OEM plastic charge pipe and increase airflow and intercooler efficiency with the PERRIN Charge Pipe for WRX
Silencer included for days when you need to dial it back
It is not recommended that you touch the glass portion of the bulb for any reason
it will improve response of up shifting and acceleration performance
Stainless Nuts Included
GrimmSpeed Bypass Valve RED - 2015-2021 Subaru WRX Wheel and Tire Accessories>Hubcentric Rings Replace the restrictive OEM plasticThe GrimmSpeed bypass valves are the best in town, boasting enhanced performance, superior reliability, and effortless manufacturability. The V2 BPV features a 38mm aluminum piston that releases pressure in a jiffy and promises leak free functioning with buna n o rings. The valve body and base are made of billet 6061 aluminum alloy, anodized for corrosion resistance, and comes with a red finish. With no tuning required, the BPV is a must have for
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