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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: The RennTech R1 Performance Package is the perfect entry level performance upgrade for the SLK 55 AMG. The R1 performance package The R1 performance package for the Mercedes 55 series engine includes our proprietary ECU upgrade in addition to our full carbon fiber airbox upgrade which...

Description: RennTech increased engine performance it becomes necessary to further improve the drive line components, most importantly the transmission in order to ensure maximum power is transmitted to the drive wheels without transmission slippage. This can not be realized with software and only truly be...

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 stainless steel and ceramic-coated exhaust headers offer true bolt-on installation, mounting...

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 increased engine performance it becomes necessary to further improve the drive line components, most importantly the transmission in order to ensure maximum power is transmitted to the drive wheels without transmission slippage. This can not be realized with software and only truly be...

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 cars, RennTech's big...

Description: RennTech toe link kit maintains stability at high speed, ensures the vehicle tracks straight under heavy acceleration as well as properly positions the car's suspension under heavy cornering and braking loads. When used with our adjustable camber bushings, the high-quality aircraft grade materials used...

Description: RennTech increased engine performance it becomes necessary to further improve the drive line components, most importantly the transmission in order to ensure maximum power is transmitted to the drive wheels without transmission slippage. This can not be realized with software and only truly be...

Description: Simply explained, 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 upgrading the differential,...

Description: RennTech dual intercooler pump kit out performs any other unit on the market! RennTech upgrade replaces the OEM pump and includes an additional pump to allow maximum cooling efficiency and flow. Each individual pump flows over twice as much coolant as the problematic OEM pump...

Description: RennTech stainless steel (SS) sport mufflers are hand made and rigorously tested to remove any unwanted resonances in the cabin to deliver a deep sound that keeps with the character of a luxury performance vehicle.  RennTech mufflers offer lighter weight than the stock exhaust and...

Description: The RennTech R3  Performance Package is the perfect entry level performance upgrade for the SL 65 AMG Black Series. The R3 performance  package includes everything found in our performance package 2 plus our 100% locking limited slip differential upgrade to improve handling and traction and...

Description: The RennTech R2 Performance Package is the perfect entry level performance upgrade for the SL 65 AMG Black Series. The R2 performance package is the next step up from our R1 performance package and includes our proprietary ECU tune, higher efficiency dual intercooler pump...

Description: The RennTech R1 Performance Package is the perfect entry level performance upgrade for the SL 65 AMG Black Series. The R1 performance package includes proprietary ECU tune and proprietary ram air inlet housings for the inatke system for increased, power, performance and throttle response across...

Description: RennTech SL 65 AMG  Black Series Brake Ducts are designed to improving brake performance during dynamic road and track driving. Significantly increasing the longevity of brake pads, rotors and calipers, the Brake Ducts are the first step toward a more powerful and efficient...

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, RennTech's big brake packages...

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 cars, RennTech's big...

Description: RennTech Rear Camber Bushing Kit maintains stability at high speed, ensures the vehicle tracks straight under heavy acceleration as well as properly positions the car's suspension under heavy cornering and braking loads. When used with our adjustable camber bushings, the high-quality aircraft grade...

Description: RennTech toe link kit maintains stability at high speed, ensures the vehicle tracks straight under heavy acceleration as well as properly positions the car's suspension under heavy cornering and braking loads. When used with our adjustable camber bushings, the high-quality aircraft grade materials used...

Description: Simply explained, 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 upgrading the differential,...

Description: The RennTech lock-up clutch upgrade uses a multi-element clutch upgrade with additional layer of friction material between the clutch plate, better friction material on the clutch face and a larger surface area of friction material to help control slippage. This allows for better heat...

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 flows an impressive 8.7 G.P.M. @ 11.6 P.S.I....

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: The RennTech R3 Performance Package is the perfect entry level performance upgrade for the SL 600. With the combination of the RennTech ECU Upgrade and high efficiency Intercooler Pump and Airbox, RennTechis able to add up to +79 HP / +162 LB-FT to the V12 engines (compared to...

Description: The RennTech R2 Performance Package is the perfect entry level performance upgrade for the SL 65 AMG. With the combination of the RennTechECU Upgrade and high efficiency Intercooler Pump and Airbox, RennTechis able to add up to +79HP / +162 LB-FT to the V12 engines (compared to RennTechrated...

Description: The RennTech R1 Performance Package is the perfect entry level performance upgrade for the SL 600. With the combination of the RennTechECU Upgrade and high efficiency Intercooler Pump, RennTechis able to add up to +49 HP / +102 LB-FT to the V12 engines (compared to RennTechrated...

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: The RennTech R3 Performance Package is the perfect entry level performance upgrade for the SL 63 AMG. RennTech package 3 includes everything found in performance package 2 plus stainless steel long tube headers, 100% locking limited slip differential to improve handling and traction in addition...

Description: The RennTech R2 Performance Package is the perfect entry level performance upgrade for the SL 63 AMG. RennTech performance package 2 includes our proprietary ECU tune in addition to our full carbon fiber airbox, 82mm throttle body kit and RennTech stainless steel headers for a gain of...