RENNtech ECU+ Upgrade | W213 | E43 AMG | Sedan | 416 HP / 471 LB-FT | M276 | 3.0L V6 BiTurbo | MY2017-2018 audi-rs4--8k---2012-2015--4-2l-v8-fsi-esr2470407 CLK COUPE' (C 209) 63

CLK COUPE' (C 209) 63 AMG Black Series [2 Filters Required] (HP: 507 | Year: 07 > 09)

SL (R230) 500 V8 [2 Filters Required] (HP: 306 | Year: 01 > 06)

582 LB-FT @ 5

The rear spoiler offers a smooth transition of airflow over the trunk lid of the vehicle to ambient air and produces greater down force across the rear of the vehicle at speed

RENNtech ECU+ Upgrade | W213 | E43 AMG | Sedan | 416 HP / 471 LB-FT | M276 | 3.0L V6 BiTurbo | MY2017-2018 audi-rs4--8k---2012-2015--4-2l-v8-fsi-esr2470407 CLK COUPE' (C 209) 63The RENNtech ECU Plus Upgrade brings the E43 AMG Sedan up to 416 HP and 471 LB FT Gains: +14 HP and +57 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.