RENNtech ECU Upgrade for E 320 (W211- 225 HP / 240 LB-FT) mercedes-benz-cls-class--219---2006-2011--cls-550-esr9083602 Rated by RENNtech: 435 HP

Rated by RENNtech:               435 HP @ 5

0" Weight:   Construction: 1-piece Forged Tire Size: 255/35-19

RENNtech Sport 2 wheels are VIA certified to meet JWL (Japan Light Alloy Wheel standard) technical standards to ensure exceptional quality

R2 Performance Package for 209 - CLK 63 AMG

RENNtech Stainless Steel Sport Mufflers w/Electronic Valves for the W217 - S 65 AMG Coupe BiTurbo

RENNtech ECU Upgrade for E 320 (W211- 225 HP / 240 LB-FT) mercedes-benz-cls-class--219---2006-2011--cls-550-esr9083602 Rated by RENNtech: 435 HPRENNtech ECU Upgrade for 210 E 320, up to 225HP and 240LB FT. Gains: +10HP & 11LB 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