RPI

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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.

RPI GT EXHAUST – AXLE BACK BMW E60 545I
RPI GT axle back system for the 545i is unique and unlike any other exhausts system for the 545i. With maximum velocity in mind, this GT system uses a reduction method to maintain exhaust gas temperatures towards the rear of the exhaust system. This allows for significant HP and TQ gains throughout the entire power band during the dyno tests.

Like all RPi exhaust systems, each comes with a limited lifetime warranty and is 100% made in the United States

RPI GT axle back system for the 545i is unique and unlike any other exhausts system for the 545i. With maximum velocity in mind, this GT system uses a reduction method to maintain exhaust gas temperatures towards the rear of the exhaust system. This allows for significant HP and TQ gains throughout the entire power band during the dyno tests.

Like all RPi exhaust systems, each comes with a limited lifetime warranty and is 100% made in the United States.

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RPI GT EXHAUST – AXLE BACK BMW E60 550I
RPI GT series axle back exhaust for the BMW 550i increases torque and horsepower throughout the power band by maximizing exhaust gas velocity. Specially designed for the 550i, this GT exhaust is made with high quality T-304 stainless steel and comes with our limited lifetime warranty.

RPI GT EXHAUST SECTION 3 – BMW E60 M5
RPI GT series exhaust section 3 for the BMW E60 M5 is made from high quality T-304 stainless steel and offers exceptional performance as well as sound. The E60 M5 exhaust comes with quad dual wall tips connects to the factory piping via v-band flanges and clamps.

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RPI ST EXHAUST – BMW E46 M3
RPI ST Series exhaust system for the E46 M3 offers excellent performance while minimizing “raspiness” often found when adding an after market exhaust on the E46. This exhaust is made of T-304 stainless steel and comes with the RPi limited life time warranty. Expect 5-8whp.

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RPI GT EXHAUST – E92 335I
As with all RPi GT series exhausts, each system is designed with maximum performance and superior sound in mind. Our 335i exhaust follows the GT series tradition offering a remarkable torque and hp increase. Expect a gain of 20-40ft/lbs* and 15-30hp*. All RPi exhausts are made with the high quality T304 stainless steel, come with the RPi lifetime warranty and is 100% made in the USA.

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RPI GT AXLE BACK MUFFLER ASSEMBLY – BMW E92 M3
Don’t be fooled by other exhausts systems and phony dyno sheets. All RPi exhausts are RPi* tested and come with a limited life time warranty. Our popular GT series exhaust offers an aggressive sound and exceptional performance at a great price. This exhaust is 100% bolt on with no other parts/hardware to purchase. Expect a 5-10whp gain with the rear muffler section. For an even more aggressive sound and huge hp/tq gains, ask about our GTM Race system for the M3.

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RPI GTC LIMITED EDITION EXHAUST E92 M3
This limited edition GTC exhaust features a hand-crafted muffler with laser cut end caps. The GTC offers the same performance as our popular GT and GTM systems but is 20-30% quieter. Less drone, quieter cold start and lower overall sound makes the GTC a great exhaust for the daily driven weekend racer. All RPi exhaust comes with a limited lifetime warranty.

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RPI GT EXHAUST – E82 135I (TWIN TURBO)
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.

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RPI X5M/X6M GTS AXLE BACK EXHAUST
RPi develops the first straight through exhaust design for the X5M and the X6M. Exhaust systems from other competitors tend to “chamber” their mufflers because of the lack of space in the rear of the X5M and X6M. Expect 10-15hp and a great sound. All RPi exhausts are made with T304 stainless steel and come with our limited lifetime warranty.

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