Reviewed By Emmitt B (Honolulu, HI) Reviewed for a 2000 Pontiac Firebird —7/10/2017 11:04 PM
Smallest thing can make such a big difference in overall performance. Still monitoring mileage improvements.
Reviewed By Jason C (Danville, IN) Reviewed for a 1998 Mitsubishi 3000GT —5/14/2015 2:42 AM
in my opinion it's one of the best things you can do to open up your performance in your vehicle once you've done the Exhaust upgrades and cold air intake you can see a big boost in performance I can even sure from now and all 5 gears