Just installed my F.I. catalytic converters today and all I can say is WOW! I've read that out of the entire exhaust this is the most restrictive part and I have no doubt. When I first bought the car several years ago I did MREV2, spacer and z-tube all at once. It seemed to really free up quite a bit of horsepower and the car felt significantly lighter. The Stillen intake and then the Bassani exhaust didn't quite seem to make that big a difference but sure were nice. Guess it's time to go to Austin and get the car dynoed and tuned asap. I hope they can get it to free up a couple of extra ponies on the car.

 

Is there a question or something.........................why did you create a tuning thread?