OLD TIMER 62
Reviewed By Paul m K (Vienna, IL) Reviewed for a 2014 Chevy Camaro —2/23/2015 2:28 PM
Seems to run better, but haven't had a chance to open it up out on open road. The sound did not change much on my 2014 Camaro SS. I have not installed 63Series on my 2014 Chevrolet Silverado yet, but when I do I hope it improves my gas mileage.