Mercedes CLS550 V8 Bi-Turbo Powerful ECU Tuning VRTuned.com January 14, 2016 Product Info The Mercedes CLS550 M278 engine is huge power plant for the large sporty sedan. The 4.663 liter V8 Bi-Turbo engine produces 402 bhp while matched with a 7 speed automatic transmission. Driving this car...
Mercedes CLS550 4.7L Bi-Turbo ECU Dyno Test VRTuned.com December 28, 2015 Product Info, Tuning Tech We had a chance to test out our VR Tuned ECU Flash on this 2012 Mercedes CLS550. The 550 features the 4.7L V8 Bi-Turbo that makes 402 horsepower. On our Mustang All Wheel Drive Dyno with 91 octane, this...
