Jason's Mercedes-Benz C63 AMG W204 came to Revhigh after a major engine refresh and some performance upgrades. Powered by the legendary M156 6.3L V8, the car had received reconditioned cylinder heads, updated head bolts, extractors and a set of performance camshafts. However, after having the car tuned elsewhere, Jason wasn't completely happy with how it was performing. Starting With a Dyno Test We put the C63 on the dyno to establish exactly where the car was at. The initial

The 2014 W222 Mercedes-Benz S550 (M278 4.7L V8 Twin Turbo) is already a luxury flagship, but with Revhigh Stage 2 custom tuning and a full-segment exhaust upgrade, it transforms into a high-performance cruiser with incredible torque and power. The 2014 W222 Benz S550 (M278 4.7L V8 Twin Turbo) is already a luxury flagship, but with VAITRIX Stage 2 one-on-one custom tuning and a full-segment exhaust system, it transforms into a “performance cruise torque vehicle.” Dynojet Verif