Jaguar XF R-S in for SMS Custom Dyno Tune

Jaguar XF R-S in for SMS Custom Dyno Tune

Custom Tuning Jaguar XF R-S This awesome piece of British Horsepower checked in for Re-Tune, XF is powered by V8 Supercharged Motor that is equipped with the bigger pulley, installed and tuned by an unknown tuner we were able to extract additional 40whp and 40wtq at...