I know this has been mentioned before but I didn't feel like going through old threads. I just found out that my exhaust has a hole in it right after the front catalytic convertor so I decided i'm going to redo the whole exhaust for a nice sound and performance. I'm going to be using new exhaust all the way and i'm going to use one cat where the second one now is. My question is what size of piping should I use as the motor is stock and the only thing I might modify in the future is the intake. I was thinking about going to 2.25 all the way with a high flow cat. Also what muffler would be best for performance. Was thinking about maybe using a glasspack but wanted to see what everyone else's opinions are?

BTW the car is an 86 Gl-10 Turbo wagon

anybody?

I don't have an answer for you, but I am interested in the same idea. I'll look around to see if I can find anything out