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Description: The RennTech R1 Performance Package is the perfect entry level performance upgrade for the G 55 AMG. Performance package R1 includes our proprietary ECU tune and crankshaft pulley in addition to our higher efficiency intercooler pump for increased, power, performance and throttle response across the entire powerband. The...

Description: This is the second generation of the RennTech G-Wagon performance shock system. As any G-Wagon owner knows, the vehicle is an incredible off-road machine, but suffers from a less than comfortable ride and lack luster handling when spending its time on-road. Our brand new,...

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: This is the second generation of the RennTech G-Wagon performance shock system. As any G-Wagon owner knows, the vehicle is an incredible off-road machine, but suffers from a less than comfortable ride and lack luster handling when spending its time on-road. Our brand new,...

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 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: The RennTech R1 Performance Package is the perfect entry level performance upgrade for the E 63 AMG. With the combination of the RennTech ECU Upgrade and the latest, 3rd generation Diverter Valve RennTech is able to add up to 91 HP and 175 LB-FT to the...

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 ML 63 AMG. RennTech performance package includes our proprietary ECU tune in addition to our full carbon fiber airbox for a gain of +42 HP and +30 TQ over stock. A surplus...

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...

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. Advanced computer aided design (CAD) and flow-analysis software allows RennTech headers to...

Description: The RennTech R1 Performance Package is the perfect entry level performance upgrade for the ML 63 AMG. With the combination of the RennTech ECU Upgrade and the latest, 3rd generation Diverter Valve RennTech is able to add up to 122 HP and 178 LB-FT to the 5.5L V8 BiTurbo...

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 port...

Description: The RennTech R1 Performance Package is the perfect entry level performance upgrade for the E 63 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...

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: 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 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 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: 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 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 R1 Performance Package is the perfect entry level performance upgrade for the E 55 AMG. Performance package R1 includes our proprietary HHT - Hand Held Tuner ECU Upgrade and crankshaft pulley in addition to our higher efficiency intercooler pump for increased, power, performance...

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. Advanced computer aided design (CAD) and flow-analysis software allows RennTech headers to...

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: 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 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: The RennTech R1 Performance Package is the perfect entry level performance upgrade for the E 63 AMG. The R1 performance package includes proprietary ECU tune in addition to our full carbon fiber airbox for a gain of +42 HP and +30 TQ over stock. The addition...

Description: The RennTech R1 Performance Package is the perfect entry level performance upgrade for the E 63 AMG. The R1 performance package includes Our performance package includes our proprietary ECU tune in addition to our full carbon fiber airbox for a gain of +31 HP and...