RENNtech

The 2008-2011 C 350 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, so the extra power arrives across the whole rev...

RennTech built its name in Florida tuning high-performance engines, and this ECU Upgrade for the 2008-2012 BMW Z4 35i E89 is the result of in-house dyno development on the N54B30. Timing, throttle, air-fuel and boost tables are revised as one calibration, so the car...

The 2008-2012 BMW Z4 35iS E89 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, so the extra power arrives across the...

If you want more from the 2009-2011 Bentley Continental Supersport 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...

The 2009-2011 Porsche 997 GT3 3.8L 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 3.8L, so the extra power...

RennTech built its name in Florida tuning high-performance engines, and this ECU Upgrade for the 2009-2012 Porsche 997 Carrera is the result of in-house dyno development on the 3.6L. Timing, throttle, air-fuel and boost tables are revised as one calibration, so the car pulls...

RennTech built its name in Florida tuning high-performance engines, and this ECU Upgrade for the 2009-2012 Porsche 997 Carrera S is the result of in-house dyno development on the 3.8L. Timing, throttle, air-fuel and boost tables are revised as one calibration, so the car...

RennTech built its name in Florida tuning high-performance engines, and this ECU Upgrade for the 2009-2012 Porsche 997.2 Turbo is the result of in-house dyno development on the 3.8L turbo. Timing, throttle, air-fuel and boost tables are revised as one calibration, so the car...

If you want more from the 2010-present GLK 350 Blue Efficiency without touching the hardware, this RennTech ECU Upgrade is the cleanest way to get it. RennTech revises the factory calibration for the 3.5L M276 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 2010-present GLK 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...

The 2010-2011 BMW 335iS E92/E93 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 twin-turbo, so the extra power...

RennTech built its name in Florida tuning high-performance engines, and this ECU Upgrade for the 2010-2011 Porsche 997 GT3 RS 3.8L is the result of in-house dyno development on the 3.8L. Timing, throttle, air-fuel and boost tables are revised as one calibration, so the...

RennTech built its name in Florida tuning high-performance engines, and this ECU Upgrade for the 2010-2012 Porsche 997.2 Turbo S is the result of in-house dyno development on the 3.8L turbo. Timing, throttle, air-fuel and boost tables are revised as one calibration, so the...

If you want more from the 2010-2013 E 350 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...

The 2010-2013 E 350 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, so the extra power arrives across the whole rev...

The 2010-2013 E 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, so the extra power arrives across the whole rev...

RennTech built its name in Florida tuning high-performance engines, and this ECU Upgrade for the 2010-2013 E 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...

RennTech built its name in Florida tuning high-performance engines, and this ECU Upgrade for the 2010-2016 E 350 Blue Efficiency 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...

RennTech built its name in Florida tuning high-performance engines, and this ECU Upgrade for the 2010-2016 E 63 AMG, S 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...

The 2011-2014 McLaren MP4-12C 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, so the extra power arrives across the whole rev...

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 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 built its name in Florida tuning high-performance engines, and this ECU Upgrade for the 2011-2014 SLS Black Series 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 2011-2018 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...

The 2011-2020 SLK 350 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 3.5L M276 V6, so the extra power...

If you want more from the 2012 BMW 1M Coupe E82 without touching the hardware, this RennTech ECU Upgrade is the cleanest way to get it. RennTech revises the factory calibration for the 3.0L N54B30 twin-turbo, raising power and torque through the full band...

The 2012-2015 ML 350 Blue Efficiency 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 3.5L M276 V6, so the...

The 2012-2015 ML 400 BiTurbo 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...

If you want more from the 2012-2015 ML 63 AMG BiTurbo 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...

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...