RENNtech

The 2010-2016 E 63 AMG S responds well to software, and RennTech has been writing engine calibrations since electronic engine management arrived in the mid-1980s. This Intermediate ECU Upgrade rewrites ignition timing, throttle mapping, fueling and boost control on the 5.5L M157 twin-turbo V8,...

The 2010-2016 E 550 responds well to software, and RennTech has been writing engine calibrations since electronic engine management arrived in the mid-1980s. This Intermediate ECU Upgrade rewrites ignition timing, throttle mapping, fueling and boost control on the M278 twin-turbo, so the extra power...

If you want more from the 2012-2015 ML 550 BiTurbo without touching the hardware, this RennTech Intermediate 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...

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...

The 2013-2015 GL 63 AMG responds well to software, and RennTech has been writing engine calibrations since electronic engine management arrived in the mid-1980s. This Intermediate ECU Upgrade rewrites ignition timing, throttle mapping, fueling and boost control on the 5.5L M157 twin-turbo V8, so...

RennTech built its name in Florida tuning high-performance engines, and this Intermediate ECU Upgrade for the 2014-2017 S 63 AMG BiTurbo 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...

If you want more from the 2015-2017 S 63 AMG BiTurbo 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...

If you want more from the 2016-2020 GLE 63 AMG SUV 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...

If you want more from the 2016-2020 GLE 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...

RennTech built its name in Florida tuning high-performance engines, and this Intermediate ECU Upgrade for the 2016-2023 C 63 AMG / C 63 S AMG Sedan is the result of in-house dyno development on the 4.0L M177 twin-turbo V8. Timing, throttle, air-fuel and boost...

The 2017-2023 C 63 AMG / C 63 S Coupe responds well to software, and RennTech has been writing engine calibrations since electronic engine management arrived in the mid-1980s. This Intermediate ECU Upgrade rewrites ignition timing, throttle mapping, fueling and boost control on the...

RennTech's Lane Departure Assist Module for the 2019-2026 G-Class unlocks or adjusts a factory function through a plug-in module, with no permanent change to the car.Key details This ROM removes the sudden braking intervention when lane departure assist activates, while keeping the warning tone...

RennTech's Lane Departure Assist Module for the 2019-2026 Sprinter unlocks or adjusts a factory function through a plug-in module, with no permanent change to the car.Key details This ROM turns off crosswind assist on equipped vans as part of the lane departure setup. It's...

RennTech headers for the 2002-2008 G 55 AMG / G 500 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.Key details These long-tube...

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 2007-2011 SL 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...

RennTech packages its most popular upgrades for the 2022-2026 SL 55 / SL 63 AMG into one matched Low and Loud Package Axle Lift. Each part is calibrated to work with the others on the 4.0L M177 twin-turbo V8.Key details This package changes how...

RennTech packages its most popular upgrades for the 2022-2026 SL 55 / SL 63 AMG into one matched Low and Loud Package Non-Axle Lift. Each part is calibrated to work with the others on the 4.0L M177 twin-turbo V8.Key details This package changes how...

RennTech modifies the factory aluminum lower control arms for the 2013-2018 A 45 AMG to add camber adjustment, so lowered and track-prepared cars can be aligned properly and wear tires evenly.Features Adds camber adjustment Based on the factory aluminum arm Pairs well with the...

RennTech modifies the factory aluminum lower control arms for the 2014-2019 CLA 45 AMG to add camber adjustment, so lowered and track-prepared cars can be aligned properly and wear tires evenly.Features Adds camber adjustment Based on the factory aluminum arm Pairs well with the...

RennTech modifies the factory aluminum lower control arms for the 2014-2021 GLA 45 AMG to add camber adjustment, so lowered and track-prepared cars can be aligned properly and wear tires evenly.Features Adds camber adjustment Based on the factory aluminum arm Pairs well with 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 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...

RennTech's Matte Carbon Decklid Spoiler for the 2015-2021 C 63 S 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...

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...

This RennTech Matte Carbon Decklid Spoiler adds a purposeful carbon detail to the 2015-2021 C 63 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...

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 Motorsport Suspension Package for the 2005-2010 SLR McLaren 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.Key...

RennTech's Multi-Spoke 19-inch Wheels for the 2003-2009 E-Class are forged for strength and low weight, sized and offset by RennTech for this car.Key details These two-piece forged wheels come in a brushed finish, sized 19 x 9.0 in front and 19 x 10.0 in...

These Multi-Spoke 20-inch Wheels from RennTech are made for the 2003-2020 SL-Class, with staggered sizing chosen by RennTech to fill the arches properly.Key details Two-piece forged wheels with a brushed finish.Features Forged aluminum construction Staggered front and rear sizes listed for this car Sized...