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HKS Super Turbo Cat Back Exhaust System
- 2015+ STI
Ships for free in the 48 states
Not just powerful performance with quiet sound! HKS designed this catback exhaust to result in a dry sporty exhaust sound that can be heard inside the vehicle at the step of a pedal.
In pursuit of the ideal exhaust system they used a 75mm straight structure which generates the lowest exhaust pressure while maintaining comfort inside the vehicle.
- 3" to split 2.4" piping
- Two 4.9" exhaust tips
- 85dB vs stock 78dB (both are 60dB at idle)
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HKS Super Turbo Cat Back Exhaust System / 31029-AF011 Fits
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