Hello to all of you. I am currently driving a 2009 Jeep Grand Cherokee. (Hemi)
Did some mods to it: K&N AirCharger, Borla cut-back, Modern Muscle 85 mm throttle body, Diablo Sport 93 octane tune.
Car still runs like a hoog. 0-60 time: 7.8 second. It looks like engine is reving to high before shifting gears. Any ideas.