RENNtech ECU Upgrade CLK 430 W208 | 285 HP / 307 LB-FT | MY1999-2002 bmw-5-series--e60---2003-2005--esr1622258 +35 HP & +35 LB-FT

+35 HP & +35 LB-FT

Aston Martin DBX V8

+49 HP / +88 LB-FT

mounting directly to the OE down pipes - and all RENNTECH headers are hand built from mandrel-bent

): 329 HP @ 5

RENNtech ECU Upgrade CLK 430 W208 | 285 HP / 307 LB-FT | MY1999-2002 bmw-5-series--e60---2003-2005--esr1622258 +35 HP & +35 LB-FTRENNtech 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