RENNtech ECU Upgrade for E 550 | W212 | 402 HP / 405 LB-FT | MY2010-2011 porsche-911--996---1997-2005--turbo-esr2051690 The R3+ Performance Package was

The R3+ Performance Package was developed and tested running on standard 93 octane gas and 100 octane race fuel

E63 AMG 4-MATIC+ Sedan | MY2018+

7 Series (E65) 730 d/Ld (HP: 217 | Year: 02 > 04)

Rated by Aston Martin (avg

RENNtech ECU Upgrade for E 550 | W212 | 402 HP / 405 LB-FT | MY2010-2011 porsche-911--996---1997-2005--turbo-esr2051690 The R3+ Performance Package wasRENNtech ECU Upgrade for 212 E 550. Up to 402HP and 405LB FT. Gains: +20HP & 14LB 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