RENNtech ECU+ Upgrade | Aston Martin | V8 Vantage | 615 HP/645 LB-FT | 4.0L V8 BiTurbo | M177 | MY2018-2023 mercedes-benz-e-class-sedan--213---2017-present--e-300-esr7131049 CLASS S (W 221) 500

CLASS S (W 221) 500 4-matic [2 Filters Required] (HP: 387 | Year: 06 > )

The maximum power number reached with the RENNtech ECU Upgrade for the AMG GT-S is 601 HP and 582 LB-FT

We ceramic coat our headers to retain heat within them and minimize latent heat in the engine compartment and combats against thermal stress

TPMS Compatible

Optional 1-piece or 3-piece CNC machined RENNtech center cap designs

RENNtech ECU+ Upgrade | Aston Martin | V8 Vantage | 615 HP/645 LB-FT | 4.0L V8 BiTurbo | M177 | MY2018-2023 mercedes-benz-e-class-sedan--213---2017-present--e-300-esr7131049 CLASS S (W 221) 500ECU+ 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