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Description: RennTech understands that brakes are one of the most important components of any performance car. Big brake upgrades are some of the most capable systems available at any price. Designed specifically to complement and control the mass of high-performance Mercedes and AMG cars, RennTech's...

Description: RennTech latest second generation intercooler pump out performs any other unit on the market; flowing over twice as much coolant as the problematic OEM pump and significantly more than its predecessor. Testing showed our Intercooler pump Testing showed our Intercooler pump flows an impressive...

Description: RennTech Locking Limited Slip Differential, a differential is the last point between the engine and the wheels where power is transferred. The differential functions as a system to direct engine power at the wheels while allowing them to rotate at different speeds. By...

Description: RennTech transmission upgrade consists of a complete transmission disassembly and inspection as well as a mechanical upgrade to the transmission clutch packs. This allows us the ability to maximize the amount of friction materials contained within the transmission and in turn, the amount of...

Description: Our rear diffuser specifically designed for the CLS 63 Biturbo is the companion component and perfect addition to our 3-piece carbon front splitter. It visually enhances the rear of the CLS, acts as a functional component of the vehicles exterior in order to...

Description: The RennTech R1 Performance Package is the perfect entry level performance upgrade for the CLS63 AMG. With the combination of the RennTech ECU Upgrade and the latest, 3rd generation Diverter Valve RennTech is able to add up to 146 HP and 257 LB-FT to the 5.5L...

Description: RennTech Locking Limited Slip Differential, a differential is the last point between the engine and the wheels where power is transferred. The differential functions as a system to direct engine power at the wheels while allowing them to rotate at different speeds. By...

Description: RennTech proprietary 82mm Performance Throttle body package offers a 22% increase of incoming air volume. This translates into a noticeable gain in both overall performance and throttle response with a performance increase of 11hp & 8 lb/ft.RennTech  throttle body assemblies were designed and engineered...

Description: RennTech is proud to introduce an all new aerodynamic parts design for the Mercedes-Benz C-Class. This highly integrated pre-preg carbon fiber compliments the sophisticated and refined C-Class exterior design language. The aerodynamic parts is coated inside and out with an all new acrylic UV protection system....

Description: RennTech is proud to introduce an all new aerodynamic parts design for the Mercedes-Benz C-Class. This highly integrated pre-preg carbon fiber compliments the sophisticated and refined C-Class exterior design language. The aerodynamic parts is coated inside and out with an all new acrylic UV protection system....

Description: RennTech is proud to introduce an all new rear diffuser w/ Integrated exhaust tips design for the Mercedes-Benz C-Class. This highly integrated pre-preg carbon fiber diffuser compliments the sophisticated and refined C-Class exterior design language RennTech aggressive, race inspired carbon fiber rear diffuser improves air flow...

Description: RennTech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal. RennTech proprietary tuning module stores both the RENNtech tuned file and your vehicles stock file. The module plugs directly into the OBD2...

Description: RennTech stainless steel and ceramic-coated exhaust headers offer true bolt-on installation, mounting directly to the OE down pipes and all RennTech headers are hand built from mandrel-bent, seamless tubing and CNC machined stainless flanges. RennTech is use advanced computer aided design (CAD) and flow analysis...

Description: RennTech transmission upgrade consists of a complete transmission disassembly and inspection as well as a mechanical upgrade to the transmission clutch packs. This allows us the ability to maximize the amount of friction materials contained within the transmission and in turn, the amount of...

Description: RennTech transmission upgrade consists of a complete transmission disassembly and inspection as well as a mechanical upgrade to the transmission clutch packs. This allows us the ability to maximize the amount of friction materials contained within the transmission and in turn, the amount of...

Description: RennTech transmission upgrade consists of a complete transmission disassembly and inspection as well as a mechanical upgrade to the transmission clutch packs. This allows us the ability to maximize the amount of friction materials contained within the transmission and in turn, the amount of...

Description: RennTech Sport Mufflers are made out of T-304 stainless steel (SS) and 100% hand crafted in the USA. This exhaust system is rigorously tested to remove any unwanted resonances in the cabin to deliver a deep sound that keeps with the character of a...

Description: RennTech Sport Mufflers are made out of T-304 stainless steel (SS) and 100% hand crafted in the USA. This exhaust system is rigorously tested to remove any unwanted resonances in the cabin to deliver a deep sound that keeps with the character of a...

Description: RennTech Sport Mufflers are made out of T-304 stainless steel (SS) and 100% hand crafted in the USA. This exhaust system is rigorously tested to remove any unwanted resonances in the cabin to deliver a deep sound that keeps with the character of a...

Description: RennTech Sport Mufflers are made out of T-304 stainless steel (SS) and 100% hand crafted in the USA. This exhaust system is rigorously tested to remove any unwanted resonances in the cabin to deliver a deep sound that keeps with the character of a...

Eisenmann Rear Muffler - Porsche Panamera, 4, 4S, Turbo 2010-2017 DESCRIPTION: Eisenmann's engineers are responsible for designing the OEM systems seen on cars, and use this experience to design the best performance exhaust systems in the world. Eisenmann's performance exhausts are built by hand...

Eisenmann Rear Muffler - Porsche 981 Cayman GT4, Boxster S 2013-2016 DESCRIPTION: Eisenmann's engineers are responsible for designing the OEM systems seen on cars, and use this experience to design the best performance exhaust systems in the world. Eisenmann's performance exhausts are built by...

Eisenmann Rear Muffler - Porsche 95B Macan 2015-2017 DESCRIPTION: Eisenmann's engineers are responsible for designing the OEM systems seen on cars, and use this experience to design the best performance exhaust systems in the world. Eisenmann's performance exhausts are built by hand from start...

Eisenmann Rear Muffler Black Series - Mercedes E55 AMG Limousine W211 2002-2005 DESCRIPTION: Eisenmann's engineers are responsible for designing the OEM systems seen on cars, and use this experience to design the best performance exhaust systems in the world. Eisenmann's performance exhausts are built...

Eisenmann Rear Muffler - Mercedes E55 AMG Limousine W211 2002-2005 DESCRIPTION: Eisenmann's engineers are responsible for designing the OEM systems seen on cars, and use this experience to design the best performance exhaust systems in the world. Eisenmann's performance exhausts are built by hand...

Eisenmann Rear Muffler With Valve Control - Mercedes C63 S AMG W205 2015-2017 DESCRIPTION: Eisenmann's engineers are responsible for designing the OEM systems seen on cars, and use this experience to design the best performance exhaust systems in the world. Eisenmann's performance exhausts are...

Eisenmann Rear Muffler Black Series - Bmw X6M E71 2010-2013 DESCRIPTION: Eisenmann's engineers are responsible for designing the OEM systems seen on cars, and use this experience to design the best performance exhaust systems in the world. Eisenmann's performance exhausts are built by hand...

DESCRIPTION: Eisenmann's engineers are responsible for designing the OEM systems seen on cars, and use this experience to design the best performance exhaust systems in the world. Eisenmann's performance exhausts are built by hand from start to finish to create an old world craftsmanship...

DESCRIPTION: Eisenmann's engineers are responsible for designing the OEM systems seen on cars, and use this experience to design the best performance exhaust systems in the world. Eisenmann's performance exhausts are built by hand from start to finish to create an old world craftsmanship...

DESCRIPTION: Eisenmann's engineers are responsible for designing the OEM systems seen on cars, and use this experience to design the best performance exhaust systems in the world. Eisenmann's performance exhausts are built by hand from start to finish to create an old world craftsmanship...