RENNtech ECU Upgrade CLK 430 W208 | 285 HP / 307 LB-FT | MY1999-2002 mercedes-benz-c-class--204-sedan---2008-2014--c-350-esr9867207 RENNtech ECU HHT (HandHeldTuner) for

RENNtech ECU HHT (HandHeldTuner) for the 230 - SL 63 AMG

up to + 12 HP

Dyno Results Summary:

Our sound and performance pipes bypass the stock Mercedes resonators for more volume and a better sound

AMG GLS63 | X167 | M177 | 4

RENNtech ECU Upgrade CLK 430 W208 | 285 HP / 307 LB-FT | MY1999-2002 mercedes-benz-c-class--204-sedan---2008-2014--c-350-esr9867207 RENNtech ECU HHT (HandHeldTuner) forRENNtech ECU Upgrade for 208 CLK 430, up to 285HP, 307LB FT. Gains: +10HP & 12LB FT RENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our experience, countless hours of in house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability. RENNtech tuning software