I just sold one of these for a couple bucks. It's quite likely your car will run like ass and fuel economy will drop drastically. We were going to use it on our chumpcar. Even spent time on a dyno tweaking afr's to little avail. Actually produced decent power for a stock 1.6 with just exhaust work and we got the car to idle decently. But I don't think it's worth it. Especially with the mpg's we were getting doomed us for endurance racing.