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Description: The R1 performance package for the Mercedes 500 series engine includes our proprietary ECU upgrade in addition to our full carbon fiber airbox upgrade which offers a larger volume of incoming air for better engine breathing and improved cylinder filling. This combination that...

Description: The RennTech R3 Performance Package is the evolution stage of the R2 Pkg. Included in the R3 Package are all upgrades from the R2 Pkg, ECU Upgrade, Diverter Valve, Air Filters, Carbon Fiber Air Box Kit and Stainless Steel Sport Mufflers, as well as...

Description: The RennTech R2 Performance Package is the evolution stage of the R1 Pkg. The R2 not only brings additional power, but also gives the car a deeper sport sound that keeps with character of a luxury performance vehicle. Included in the R2 Package are...

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 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 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 port...

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 port...

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. Designed, engineered and manufactured in house specifically for your Mercedes Benz....

Description: RennTech is proud to introduce the all-new Sound + Styling Package exclusively for the W205 - C63 AMG Sedan and W205 - C 63 AMG Sedan. With the release of the Sport Muffler and Decklid Spoiler, RennTech brings the perfect combination of styling and sound...

Description: RennTech is proud to introduce the all-new Sound + Styling Package exclusively for the W205 - C63 AMG Sedan and C 63 AMG S Sedan. With the release of the Sport Muffler and Decklid Spoiler, RennTech brings the perfect combination of styling and sound upgrade...

Description: RennTech has been at the forefront of Ecu tuning since electronic engine management started to show up in vehicles during the mid 1980s. RennTech experience, countless hours of in-house research, development and exhaustive testing ensure that our proprietary Ecu upgrade offers incredible performance gains and...

Description: RennTech has been at the forefront of Ecu tuning since electronic engine management started to show up in vehicles during the mid 1980s. RennTech experience, countless hours of in-house research, development and exhaustive testing ensure that our proprietary Ecu upgrade offers incredible performance gains and...

Description: RennTech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980s. RennTech experience, countless hours of in-house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains...

Description: RennTech has been at the forefront of Ecu tuning since electronic engine management started to show up in vehicles during the mid 1980s. RennTech experience, countless hours of in-house research, development and exhaustive testing ensure that our proprietary Ecu upgrade offers incredible performance gains and...

Description: RennTech has been at the forefront of Ecu tuning since electronic engine management started to show up in vehicles during the mid 1980s. RennTech experience, countless hours of in-house research, development and exhaustive testing ensure that our proprietary Ecu upgrade offers incredible performance gains and...

Description: RennTech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980s. RennTech experience, countless hours of in-house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains...