RENNtech ECU+ Upgrade | W222 | Mercedes-Maybach S560 | 584HP/642LB-FT | 4.0L V8 BiTurbo | M176 | MY2018-2020 porsche-macan-gts--2018-present--esr2386666 ECU+ Upgrade | Up to

ECU+ Upgrade | Up to 601HP / 582LB-FT | Gains: +65HP & +87LB-FT

646 LB-FT @2

RENNtech performance software unleashes the true potential of your Mercedes

E63 S AMG 4-MATIC+ Wagon | MY2018+

RS7 (C8 4K)

RENNtech ECU+ Upgrade | W222 | Mercedes-Maybach S560 | 584HP/642LB-FT | 4.0L V8 BiTurbo | M176 | MY2018-2020 porsche-macan-gts--2018-present--esr2386666 ECU+ Upgrade | Up toECU+ Upgrade Up to 584 HP 642 LB FT Gains: up to +100 HP & +102 LB FT RENNtech tuning products are certified to meet CARB standards in all 50 States. RENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980s! Our experience, countless hours of in house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and