Mercedes-Benz

This RennTech exhaust for the 2011-2014 CLS 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 Hand made from T-304 stainless steel Tuned to remove cabin drone Lighter than...

RennTech's Carbon Rear Diffuser for the 2011-2014 CLS 63 AMG 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...

RennTech's Carbon Front Splitter for the 2011-2014 CLS 63 AMG 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 R2 Performance Package for the 2011-2014 CLS 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 CLS 63 AMG at up to 716 hp and...

RennTech packages its most popular upgrades for the 2011-2014 CLS 63 AMG into one matched R1 Performance Package. Each part is calibrated to work with the others on the 5.5L M157 twin-turbo V8. RennTech rates the CLS 63 AMG at up to 696 hp...

If you want more from the 2011-2014 CLS 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...

RennTech's Motorsport Suspension for the 2008-2014 C 63 AMG 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...

RennTech's 82 mm throttle body for the 2008-2014 C 63 AMG flows about 22% more air than stock. The billet aluminum housing bolts on with no changes to the intake manifold and sharpens throttle response along with a small power gain.Features 82 mm bore,...

This RennTech exhaust for the 2008-2014 C 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. RennTech measures the gain at about 10 hp and 15 lb-ft.FeaturesReduced back pressure...

RennTech's Carbon Decklid Spoiler for the 2012-2014 C 63 AMG 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...

RennTech's toe link kit keeps the 2008-2014 C 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 R3 Performance Package for the 2008-2014 C 63 AMG 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, Carbon Fiber Air Box, Upgraded Throttle Body, Long...

RennTech packages its most popular upgrades for the 2008-2014 C 63 AMG into one matched Long Tube Headers Package. Each part is calibrated to work with the others on this engine.Features Parts developed and tested by RennTech to work together One order covers the...

RennTech headers for the 2008-2014 C 63 AMG 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...

Heat soak is the enemy of a supercharged or twin-turbo Mercedes. RennTech's second-generation intercooler pump for the 2011-2014 CLS 550 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...

This RennTech exhaust for the 2011-2014 CLS 550 is built from T-304 stainless steel, lighter than the factory parts, and voiced to sound rich outside without droning inside at cruise. RennTech measures the gain at about 15 hp and 20 lb-ft.Watch it explainedFeatures Hand...

This RennTech Carbon Decklid Spoiler adds a purposeful carbon detail to the 2011-2014 CLS 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's Carbon Decklid Spoiler for the 2015-2021 C 43 AMG 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...

This RennTech Matte Carbon Decklid Spoiler adds a purposeful carbon detail to the 2015-2021 C 43 AMG. 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...

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...

The 2015-2021 C 43 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 3.0L M276 twin-turbo V6, so the...

This RennTech Carbon Decklid Spoiler adds a purposeful carbon detail to the 2015-2021 C 450 AMG. 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...

This RennTech Matte Carbon Decklid Spoiler adds a purposeful carbon detail to the 2015-2021 C 450 AMG. 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...

If you want more from the 2015-2021 C 450 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 and...

RennTech's Carbon Decklid Spoiler for the 2015-2021 C 400 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 Matte Carbon Decklid Spoiler for the 2014-2018 C 400 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...

This RennTech Carbon Decklid Spoiler adds a purposeful carbon detail to the 2008-2014 C 350. 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...

This RennTech Carbon Decklid Spoiler adds a purposeful carbon detail to the 2008-2011 C 320. 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's strut brace ties the front strut towers of the 2008-2014 C 350 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...

If you want more from the 2008-2011 C 320 without touching the hardware, this RennTech ECU Upgrade is the cleanest way to get it. RennTech revises the factory calibration for this engine, raising power and torque through the full band and keeping the smooth...