Happy Holidays! We’ll be closed from December 25th to 6th for our holiday break.

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About RPI Exhaust Systems

RPI exhaust systems are designed in house and offer an excellent balance of performance and sound. All RPi exhaust systems are tested under strict conditions to ensure the most performance for your car. For those who want better sound and performance without drawing a lot of attention, we have the ST series. The GT and GtRace series exhaust systems are designed for maximum sound and power. All RPi exhaust systems are made in the USA using top quality T304 stainless steel and come with a Limited Life Time Warranty.

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Improve Horse Power By Up To 40hp

One of the best performance options for the BMW 135i, this GT Series exhaust improves hp by up to 40hp. The exhaust system is a quad tip exhaust requiring some modification to the stock rear diffuser. Like all RPi exhaust systems, this one is 100% made in the USA, constructed with high quality T304 stainless steel and comes with RPi’s Limited Lifetime Warranty.