RENNtech ECU+ Upgrade | Aston Martin | V8 Vantage | 615 HP/645 LB-FT | 4.0L V8 BiTurbo | M177 | MY2018-2023 mercedes-benz-s-class--222---2018-2020--s-63-amg-biturbo-esr3217492 The RENNtech ECU Plus Upgrade

The RENNtech ECU Plus Upgrade brings the W166 - GLE 43 AMG SUV up to 416 HP and 460 LB-FT | Gains: +41 HP and +62 LB-FT

light weight components compensate for turbo lag despite their increased size

Up to 635HP and 780 LB-FT

SL 400 BiTurbo (R231 - M276 Biturbo 4-MATIC Engine) Modified Performance:

RENNtech ECU+ Upgrade | Aston Martin | V8 Vantage | 615 HP/645 LB-FT | 4.0L V8 BiTurbo | M177 | MY2018-2023 mercedes-benz-s-class--222---2018-2020--s-63-amg-biturbo-esr3217492 The RENNtech ECU Plus UpgradeECU+ Upgrade Up to 615 HP 645 LB FT Gains: +85 HP & +89 LB FT RENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal! Our proprietary tuning module stores both the RENNtech tuned file and your vehicles stock file. The module plugs directly into the OBD2 port and delivers the file you choose directly to the ECU. Programming takes only a few minutes and the vehicle