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PSI Proformance 850X Stage 2 Performance Package for 2020-2023 Ford Mustang Shelby GT500
Whether you're chasing power gains or overall performance improvements
GT-R ATTESA TPS output
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Subaru Titanium 3" Cat-Back Exhaust 2008-2014 STI Hatch
Subaru Stainless Steel 3" Cat-Back Exhaust STI 2004-2007 Nissan PSI Proformance 850X Stage 2COBB Subaru Stainless Steel 3" Cat Back Exhaust STI 2004 2007 The COBB catback exhaust for the WRX & STI does not deviate from the factory emissions equipment and conforms to the SAE dictated 95 decibel exhaust noise level limit enforced by California, as well as other states in the US. This system is modeled after the stock factory exhaust fitment locations, therefore making it an easy direct bolt on item inclusive of all needed gaskets and hardware.
US$ 625.00
US$ 675.00