RENNtech

With the RennTech HSM you lower the 2021-2022 GLE 580 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 each...

RennTech built its name in Florida tuning high-performance engines, and this HHT ECU Upgrade for the 1990-2018 G 500 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...

The 1990-2018 G 550 responds well to software, and RennTech has been writing engine calibrations since electronic engine management arrived in the mid-1980s. This HHT ECU Upgrade rewrites ignition timing, throttle mapping, fueling and boost control, so the extra power arrives across the whole...

If you want more from the 1997-2003 CLK 55 without touching the hardware, this RennTech HHT 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...

RennTech built its name in Florida tuning high-performance engines, and this HHT ECU Upgrade for the 1999-2006 S 55 AMG Kompresspr is the result of in-house dyno development on the 5.5L M113 supercharged. Timing, throttle, air-fuel and boost tables are revised as one calibration,...

If you want more from the 1999-2006 S 500 without touching the hardware, this RennTech HHT 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...

The 1999-2006 S 55 AMG responds well to software, and RennTech has been writing engine calibrations since electronic engine management arrived in the mid-1980s. This HHT ECU Upgrade rewrites ignition timing, throttle mapping, fueling and boost control, so the extra power arrives across the...

RennTech built its name in Florida tuning high-performance engines, and this HHT ECU Upgrade for the 1999-2006 S 65 AMG 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...

The 2000-2002 CL 600 responds well to software, and RennTech has been writing engine calibrations since electronic engine management arrived in the mid-1980s. This HHT ECU Upgrade rewrites ignition timing, throttle mapping, fueling and boost control on the 5.8L M137 V12, so the extra...

The 2001-2006 CL 55 AMG Kompresspr responds well to software, and RennTech has been writing engine calibrations since electronic engine management arrived in the mid-1980s. This HHT ECU Upgrade rewrites ignition timing, throttle mapping, fueling and boost control on the 5.5L M113 supercharged, so...

If you want more from the 2001-2006 CL 500 without touching the hardware, this RennTech HHT 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...

The 2001-2006 CL 55 AMG responds well to software, and RennTech has been writing engine calibrations since electronic engine management arrived in the mid-1980s. This HHT ECU Upgrade rewrites ignition timing, throttle mapping, fueling and boost control, so the extra power arrives across the...

If you want more from the 2001-2007 C 55 without touching the hardware, this RennTech HHT 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...

If you want more from the 2002-2006 CLK 500 without touching the hardware, this RennTech HHT 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...

If you want more from the 2002-2018 G 55 AMG Kompresspr without touching the hardware, this RennTech HHT ECU Upgrade is the cleanest way to get it. RennTech revises the factory calibration for the 5.5L M113 supercharged, raising power and torque through the full...

The 2003-2006 SL 55 AMG Kompressor responds well to software, and RennTech has been writing engine calibrations since electronic engine management arrived in the mid-1980s. This HHT ECU Upgrade rewrites ignition timing, throttle mapping, fueling and boost control on the 5.5L M113 supercharged, so...

RennTech built its name in Florida tuning high-performance engines, and this HHT ECU Upgrade for the 2003-2006 CL / S / 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...

The 2003-2006 CL 600 BiTurbo responds well to software, and RennTech has been writing engine calibrations since electronic engine management arrived in the mid-1980s. This HHT ECU Upgrade rewrites ignition timing, throttle mapping, fueling and boost control, so the extra power arrives across the...

RennTech built its name in Florida tuning high-performance engines, and this HHT ECU Upgrade for the 2003-2006 CL 65 AMG 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...

If you want more from the 2003-2006 S 600 BiTurbo without touching the hardware, this RennTech HHT 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 2003-2006 SL 500 responds well to software, and RennTech has been writing engine calibrations since electronic engine management arrived in the mid-1980s. This HHT ECU Upgrade rewrites ignition timing, throttle mapping, fueling and boost control, so the extra power arrives across the whole...

If you want more from the 2003-2006 SL 65 AMG without touching the hardware, this RennTech HHT 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...

RennTech built its name in Florida tuning high-performance engines, and this HHT ECU Upgrade for the 2003-2009 E 55 AMG Kompressor is the result of in-house dyno development on the 5.5L M113 supercharged. Timing, throttle, air-fuel and boost tables are revised as one calibration,...

The 2003-2009 E 500 responds well to software, and RennTech has been writing engine calibrations since electronic engine management arrived in the mid-1980s. This HHT ECU Upgrade rewrites ignition timing, throttle mapping, fueling and boost control, so the extra power arrives across the whole...

RennTech built its name in Florida tuning high-performance engines, and this HHT ECU Upgrade for the 2003-2009 E 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,...

The 2004-2010 CLK 63 AMG Black Series responds well to software, and RennTech has been writing engine calibrations since electronic engine management arrived in the mid-1980s. This HHT ECU Upgrade rewrites ignition timing, throttle mapping, fueling and boost control, so the extra power arrives...

RennTech built its name in Florida tuning high-performance engines, and this HHT ECU Upgrade for the 2004-2010 CLK 55 AMG 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...

If you want more from the 2004-2010 CLK 550 without touching the hardware, this RennTech HHT 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...

The 2004-2010 CLK 63 AMG responds well to software, and RennTech has been writing engine calibrations since electronic engine management arrived in the mid-1980s. This HHT ECU Upgrade rewrites ignition timing, throttle mapping, fueling and boost control on the 6.3L M156 naturally aspirated, so...

RennTech built its name in Florida tuning high-performance engines, and this HHT ECU Upgrade for the 2004-2010 SLK 55 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...