Cat Back Exhaust System for Subaru WRX, STI, Impre..

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Cat Back Exhaust System for Subaru WRX, STI, Impreza, BRZ & Toyota Supra, GR86, FT86, FR-S | #to

Cat Back Exhaust System for Subaru WRX, STI, Impreza, BRZ & Toyota Supra, GR86, FT86, FR-S

Cat Back Exhaust System for Subaru WRX, STI, Impreza, BRZ & Toyota Supra, GR86, FT86, FR-S

This will improve the throttle response and 99-06 silverado headers acceleration in naturally-aspirated cars.

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