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 SL 400 BiTurbo (R231 -

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

0 (HP: 204 | Year: 04 > 07)

light weight components compensate for turbo lag despite their increased size

Reprogram control units in vehicle to allow for larger overall diameter tire

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

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 SL 400 BiTurbo (R231 -ECU+ 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