RENNtech | ECU Upgrade | McLaren 650S porsche-911--992---2018-present--targa-4-gts-esr1386299 With the RENNtech ECU Plus

With the RENNtech ECU Plus Upgrade the W213 - E43 AMG Sedan gains up to +14 HP and +57 LB-FT

RENNtech Pre-Preg Carbon Fiber A1 Aero Package C197 - SLS AMG

The spoiler is coated inside and out with an all new acrylic UV protection system

+20 HP / +15 LB-FT

0L V8 BiTurbo engine is an incredible platform to build performance upon

RENNtech | ECU Upgrade | McLaren 650S porsche-911--992---2018-present--targa-4-gts-esr1386299 With the RENNtech ECU PlusRENNtech ECU Upgrade for the McLaren 650S. Up to 681HP and 544TQ. Gains: +49 HP & +44LB FT RENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our experience, countless hours of in house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability. RENNtech tuning