Mercedes-Benz

Heat soak is the enemy of a supercharged or twin-turbo Mercedes. RennTech's second-generation intercooler pump for the 2003-2011 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...

RennTech's Carbon Decklid Spoiler for the 2003-2011 SL 600 is made from pre-preg carbon fiber, the aerospace-grade process with tight control of resin content, weight and thickness. It is designed in-house to match the lines of the car and to fit without modifying the...

RennTech's fully adjustable rear camber bushings give the 2007-2011 SL 550 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...

The RennTech R1 Performance Package for the 2007-2011 SL 550 combines parts that RennTech developed and tested together, so you get a matched setup rather than a pile of separate upgrades. It includes ECU Upgrade and Stainless Steel Header. RennTech rates the SL 550...

This RennTech Carbon Decklid Spoiler adds a purposeful carbon detail to the 2007-2011 SL 550. 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 for consistent...

RennTech headers for the 2007-2011 SL 550 are hand built from mandrel-bent, seamless T-304 stainless tubing with CNC-machined flanges, then ceramic coated to keep heat out of the engine bay. They bolt straight to the factory downpipes. RennTech measures the gain at about 11...

RennTech's toe link kit keeps the 2007-2011 SL 550 tracking straight under hard acceleration, braking and cornering. Aircraft-grade materials remove the slop of the factory links and allow fine toe and bump-steer adjustment.Features Aircraft-grade materials Removes slop from the factory toe links Fine toe...

The RennTech V3 Digital Lowering Module (DLM) gives you full control of the 2007-2011 SL 550'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 550 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...

This RennTech exhaust for the 2012-2016 SL 65 AMG is built from T-304 stainless steel, lighter than the factory parts, and voiced to sound rich outside without droning inside at cruise.Features Tuned to remove cabin drone Lighter than the factory exhaust Reduced back pressure...

The 2012-2016 SL 65 AMG 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 6.0L M279 twin-turbo V12, so the...

The RennTech R2 Performance Package for the 2013-2020 SL 63 AMG combines parts that RennTech developed and tested together, so you get a matched setup rather than a pile of separate upgrades. RennTech rates the SL 63 AMG at up to 716 hp and...

The RennTech R1 Performance Package for the 2012-2016 SL 63 AMG combines parts that RennTech developed and tested together, so you get a matched setup rather than a pile of separate upgrades. RennTech rates the SL 63 AMG at up to 696 hp and...

This RennTech exhaust for the 2012-2016 SL 63 AMG is built from T-304 stainless steel, lighter than the factory parts, and voiced to sound rich outside without droning inside at cruise.Features Tuned to remove cabin drone Lighter than the factory exhaust Reduced back pressure...

If you want more from the 2012-2016 SL 63 AMG without touching the hardware, this RennTech Intermediate ECU Upgrade is the cleanest way to get it. RennTech revises the factory calibration for the 5.5L M157 twin-turbo V8, raising power and torque through the full...

If you want more from the 2012-2016 SL 63 AMG without touching the hardware, this RennTech ECU+ Upgrade is the cleanest way to get it. RennTech revises the factory calibration for the 5.5L M157 twin-turbo V8, raising power and torque through the full band...

The 2012-2016 SL 400 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 3.0L M276 twin-turbo V6, so the extra...

Heat soak is the enemy of a supercharged or twin-turbo Mercedes. RennTech's second-generation intercooler pump for the 2012-present SL 65 AMG 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...

Lowering the 2012-present 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's toe link kit keeps the 2012-present SL 65 AMG tracking straight under hard acceleration, braking and cornering. Aircraft-grade materials remove the slop of the factory links and allow fine toe and bump-steer adjustment.Features Removes slop from the factory toe links Fine toe and...

This RennTech exhaust for the 2017-present SL 65 AMG is built from T-304 stainless steel, lighter than the factory parts, and voiced to sound rich outside without droning inside at cruise.Features Tuned to remove cabin drone Lighter than the factory exhaust Reduced back pressure...

RennTech built its name in Florida tuning high-performance engines, and this ECU Upgrade for the 2017-present SL 65 AMG is the result of in-house dyno development on the 6.0L M279 twin-turbo V12. Timing, throttle, air-fuel and boost tables are revised as one calibration, so...

The RennTech R1 Performance Package for the 2017-present SL 63 AMG combines parts that RennTech developed and tested together, so you get a matched setup rather than a pile of separate upgrades. RennTech rates the SL 63 AMG at up to 696 hp and...

The RennTech R2 Performance Package for the 2012-present SL 63 AMG combines parts that RennTech developed and tested together, so you get a matched setup rather than a pile of separate upgrades. RennTech rates the SL 63 AMG at up to 706 hp and...

RennTech's toe link kit keeps the 2012-present SL 63 AMG tracking straight under hard acceleration, braking and cornering. Aircraft-grade materials remove the slop of the factory links and allow fine toe and bump-steer adjustment.Features Removes slop from the factory toe links Fine toe and...

The RennTech V3 Digital Lowering Module (DLM) gives you full control of the 2012-present SL 63 AMG'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...

RennTech's diverter valve for the 2012-present SL 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...

This RennTech exhaust for the 2017-present SL 63 AMG is built from T-304 stainless steel, lighter than the factory parts, and voiced to sound rich outside without droning inside at cruise.Features Tuned to remove cabin drone Lighter than the factory exhaust Reduced back pressure...

RennTech built its name in Florida tuning high-performance engines, and this ECU+ Upgrade for the 2017-present SL 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...

If you want more from the 2017-present SL 63 AMG without touching the hardware, this RennTech ECU Upgrade is the cleanest way to get it. RennTech revises the factory calibration for the 5.5L M157 twin-turbo V8, raising power and torque through the full band...