RENNtech | ECU Upgrade | SL 450 AMG | R231 | 402HP/454LB-FT | 3.0L BiTurbo V6 | M276 mercedes-benz-cl-class--215---2001-2006--cl55-amg-kompressor-esr6385228 CLS (C 219) 280 [2

CLS (C 219) 280 [2 Filters Required] (HP: 231 | Year: 08 > 09)

CLK COUPE' (C208) 200 Kompressor (ONLY ITALY) (HP: 192 | Year: 97 > 00)

This fierce combination will unleash the true potential of your 55k Mercedes and ensure you put all your new found power to the ground

to an astonishing 501 HP and 576 lb/ft at the crank

To create prepreg  fiber is pre-impregnated (hence the name) with resin at a production facility

RENNtech | ECU Upgrade | SL 450 AMG | R231 | 402HP/454LB-FT | 3.0L BiTurbo V6 | M276 mercedes-benz-cl-class--215---2001-2006--cl55-amg-kompressor-esr6385228 CLS (C 219) 280 [2RENNtech ECU Upgrade for 231 SL 450 AMG BiTurbo. Up to 402HP and 454LB FT. Gains: +40HP & +70LB FT RENNtech M276 Biturbo ECU Upgrades are TV approved! RENNtech tuning products are certified to meet CARB standards in all 50 States. 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