you can tell the difference in throttle response. A good choice to not void your warranty and then get a tune. Had hard time aligning the bolt under the gas pedal on the camaro. sport just spins the wheels so you will have to get bigger tires.
It made my 2015 Z51 3LT corvette jump when you put it in sport mode, ROAR PEDAL IS A BETTER PRODUCT IT HAS ACTUAL TRACK MODE, WHICH WORKS GREAT WITH MY CAR.