RENNtech ECU Upgrade for S 65 (W221- 670 HP / 840 LB-FT) porsche-911--991-2---2015-2019--carrera-esr9339334 6 Series (F12) 640 i

6 Series (F12) 640 i (HP: 320 | Year: 11 >)

Whether it’s a small deviation in the weave layup or a slight inconsistency in the finish

570 LB-FT @ 1800 RPM

Please Note: Vehicles without factory fixed rear wing will require MB OEM wing base and Spoiler Deactivation module

With the proprietary RENNtech ECU Upgrade the W166 - GLE AMG SUV gains up to +25 HP and +42 LB-FT

RENNtech ECU Upgrade for S 65 (W221- 670 HP / 840 LB-FT) porsche-911--991-2---2015-2019--carrera-esr9339334 6 Series (F12) 640 iRENNtech ECU Upgrade for 221 S 65 AMG. Up to 670HP and 840TQ. Gains: +49HP & +102LB 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 software