RENNtech ECU Upgrade for C 350 | W203 | 290 HP / 278 LB-FT | MY2006-2007 bmw-3-series--e90-e91---2005-2012--335d-3-0-l-i6-twin-turbo-diesel--m57n2--esr8657637 209 - CLK 63 AMG

209 - CLK 63 AMG

which will be credited upon return of OEM turbo tubes to RENNtech

343 mph RENNtech ECU Upgrade 4

The SLR McLaren Performance Exhaust consists of RENNtech Stainless Steel Sport Mufflers

The RENNtech ECU upgrade brings the C292 - GLE 43 AMG Coupe up to 400 HP and 440 LB-FT | Gains: +25 HP and +42 LB-FT

RENNtech ECU Upgrade for C 350 | W203 | 290 HP / 278 LB-FT | MY2006-2007 bmw-3-series--e90-e91---2005-2012--335d-3-0-l-i6-twin-turbo-diesel--m57n2--esr8657637 209 - CLK 63 AMGRENNtech ECU Upgrade for 203 C 350, up to 290HP, 278LB FT. Gains: +22HP & 20LB 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 for