Mercedes-Benz

If you want more from the 2007-2013 S 63 AMG without touching the hardware, this RennTech HHT ECU Upgrade is the cleanest way to get it. RennTech revises the factory calibration for the 6.3L M156 naturally aspirated, raising power and torque through the full...

RennTech's carbon fiber airbox for the 2004-2010 SLK 55 AMG lets the engine draw a larger volume of intake air, which RennTech measures as added power and sharper throttle response. It also looks the part every time the hood is open.Features Full carbon fiber...

RennTech built its name in Florida tuning high-performance engines, and this ECU Upgrade for the 2004-2010 SLK 350 is the result of in-house dyno development on this engine. Timing, throttle, air-fuel and boost tables are revised as one calibration, so the car pulls harder...

Lowering the 2007-2011 SL 65 AMG the right way means keeping the factory suspension working as designed. RennTech's DLM adjusts ride height at each corner in 1 mm increments and can return the car to factory height above a speed you set.Watch it explainedFeatures...

RennTech built its name in Florida tuning high-performance engines, and this HHT ECU Upgrade for the 2007-2011 SL 63 AMG is the result of in-house dyno development on the 6.3L M156 naturally aspirated. Timing, throttle, air-fuel and boost tables are revised as one calibration,...

Slip in the torque converter helps off the line but costs efficiency and heat once you are cruising. RennTech's lock-up clutch upgrade for the 2003-2011 SL 600 adds friction material and surface area to the lock-up clutch so it holds a solid connection under...

RennTech's fully adjustable rear camber bushings give the 2003-2006 SL 600 far more rear camber range than the factory bushings, which helps lowered cars get back within alignment spec and lets track cars run the camber they need.Features Fully adjustable rear camber Brings lowered...

Heat soak is the enemy of a supercharged or twin-turbo Mercedes. RennTech's second-generation intercooler pump for the 2003-2006 SL 600 flows 8.7 GPM at 11.6 PSI, against about 3.0 GPM from the factory pump, for cooler, denser charge air.Features Flows 8.7 GPM at 11.6...

The RennTech V3 Digital Lowering Module (DLM) gives you full control of the 2003-2011 SL 600's air or hydraulic suspension, corner by corner, in 1 mm steps. It plugs into the factory harness using factory pins, so nothing is cut or spliced and the...

RennTech built its name in Florida tuning high-performance engines, and this ECU Upgrade for the 2007-2011 SL 600 is the result of in-house dyno development on the 5.5L M275 twin-turbo V12. Timing, throttle, air-fuel and boost tables are revised as one calibration, so the...

If you want more from the 2012-2016 SL 550 without touching the hardware, this RennTech ECU Upgrade is the cleanest way to get it. RennTech revises the factory calibration for the 4.7L M278 twin-turbo V8, raising power and torque through the full band and...

The RennTech V3 Digital Lowering Module (DLM) gives you full control of the 2012-2016 SL 400's air or hydraulic suspension, corner by corner, in 1 mm steps. It plugs into the factory harness using factory pins, so nothing is cut or spliced and the...

RennTech's Coilover Suspension for the 2016-2021 AMG GT C lowers the car and tightens its handling while keeping a ride you can live with every day. Ride height is adjustable so you can set the stance and corner weights the way you want them.Features...

The 2013-2019 GL 550 responds well to software, and RennTech has been writing engine calibrations since electronic engine management arrived in the mid-1980s. This ECU+ Upgrade rewrites ignition timing, throttle mapping, fueling and boost control on the 4.7L M278 twin-turbo V8, so the extra...

The RennTech V3 Digital Lowering Module (DLM) gives you full control of the 2013-2015 GL 350's air or hydraulic suspension, corner by corner, in 1 mm steps. It plugs into the factory harness using factory pins, so nothing is cut or spliced and the...

Cruising in the 2015-2020 AMG GT S, the factory exhaust flaps never fully open. The RennTech EVM changes that with a simple remote: press button 1 for fully open valves at any speed, press button 2 to go back to the factory settings.Watch it...

RennTech built its name in Florida tuning high-performance engines, and this ECU+ Upgrade for the 2015-2020 AMG GT S is the result of in-house dyno development on the 4.0L M178 twin-turbo V8. Timing, throttle, air-fuel and boost tables are revised as one calibration, so...

RennTech's Coilover Suspension for the 2016-2021 AMG GT, S lowers the car and tightens its handling while keeping a ride you can live with every day. Ride height is adjustable so you can set the stance and corner weights the way you want them.Features...

This RennTech Carbon Decklid Spoiler adds a purposeful carbon detail to the 2018-2021 E 63 AMG S. Each piece is laid up in pre-preg carbon fiber for consistent weave and strength and finished to sit naturally with factory AMG carbon trim.Features Pre-preg carbon fiber...

With the RennTech HSM you lower the 2018-2021 E 63 AMG without cutting a wire. Plug the module into the OBD2 port in the footwell, flip the switch, and the lowering setting is written to the car's suspension controller.Features Pre-loaded RennTech lowering setting Adjust...

RennTech's diverter valve for the 2011-2014 CLS 63 AMG builds a blow-off valve into redesigned OEM-style turbo tubes. It releases boost spikes during shifts, which helps the next gear come on boost faster and lets the engine run more boost for higher output.Features Blow-off...

RennTech built its name in Florida tuning high-performance engines, and this ECU+ Upgrade for the 2011-2014 CLS 63 AMG is the result of in-house dyno development on the 5.5L M157 twin-turbo V8. Timing, throttle, air-fuel and boost tables are revised as one calibration, so...

RennTech's strut brace ties the front strut towers of the 2008-2014 C 63 AMG together for a stiffer front end, with more grip, less flex and better stability at speed. Billet aluminum and carbon fiber keep it strong and light.Features Billet aluminum and carbon...

The 2011-2014 CLS 550 responds well to software, and RennTech has been writing engine calibrations since electronic engine management arrived in the mid-1980s. This ECU Upgrade rewrites ignition timing, throttle mapping, fueling and boost control on the 4.7L M278 twin-turbo V8, so the extra...

If you want more from the 2015-2021 C 43 AMG without touching the hardware, this RennTech ECU+ Upgrade is the cleanest way to get it. RennTech revises the factory calibration for the 3.0L M276 twin-turbo V6, raising power and torque through the full band...

If you want more from the 2015-2021 C 43 AMG without touching the hardware, this RennTech ECU+ Upgrade is the cleanest way to get it. RennTech revises the factory calibration for the 3.0L M276 twin-turbo V6, raising power and torque through the full band...

RennTech built its name in Florida tuning high-performance engines, and this ECU Upgrade for the 2014-2018 C 400 is the result of in-house dyno development on the 3.0L M276 twin-turbo V6. Timing, throttle, air-fuel and boost tables are revised as one calibration, so the...

RennTech's strut brace ties the front strut towers of the 2008-2011 C 320 together for a stiffer front end, with more grip, less flex and better stability at speed. Billet aluminum and carbon fiber keep it strong and light.Features Billet aluminum and carbon fiber...

RennTech's strut brace ties the front strut towers of the 2014-2021 GLA 45 AMG together for a stiffer front end, with more grip, less flex and better stability at speed. Billet aluminum and carbon fiber keep it strong and light.Features Stiffer front end for...

RennTech's strut brace ties the front strut towers of the 2013-2018 A 45 AMG together for a stiffer front end, with more grip, less flex and better stability at speed. Billet aluminum and carbon fiber keep it strong and light.Features Stiffer front end for...