RENNtech | ECU+ Upgrade | G550 4x4² | W463 | 523 HP / 583 LB-FT | 4.0L BiTurbo V8 | M176 mercedes-benz-cl-class--215---2001-2006--cl-600--2000-2002--esr9028642 RENNtech ECU Upgrade for 222

RENNtech ECU Upgrade for 222 - S 65 AMG

160 sec 10

C257 - CLS Coupe CLS450 (Air Body Control Optional)

+10 HP & +10 TQ

Performance Tests: Vehicle Upgrades 0-60mph 0-100mph 60-130mph 1/4 Mile ET Trap Speed W213 - E63 AMG S Sedan Stock w/o Launch Control

RENNtech | ECU+ Upgrade | G550 4x4² | W463 | 523 HP / 583 LB-FT | 4.0L BiTurbo V8 | M176 mercedes-benz-cl-class--215---2001-2006--cl-600--2000-2002--esr9028642 RENNtech ECU Upgrade for 222ECU+ Upgrade 523HP 582TQ Gains: +102HP +128TQ 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 vehicles stock file. The module plugs directly into the OBD2 port and delivers the file you choose directly to