Mercedes C63 4.0L Turbo ECU Tuning Box Kits Released! VRTuned.com August 17, 2015 Product Info 2 Comments VR Tuned now has a ECU Tuning Box Kit for the 2015+ Mercedes C63. The new C63 AMG features a 4.0L twin turbo (bi-turbo) engine that produces an amazing 500 horsepower! Like all turbocharged cars, it is...
