im thinking of gettin either flowmaster amer. thunder catback (part 17234) or edelbrock catback (5673 or 5672..not sure which is right for my car). i have a 3.1
now...heres some questions..

1 which is more performance?

2 could some people post sound clips of flowmasters on 3.1 or edelbrock on a 3.1?

3 is flowmaster catback emissions legal?

4 would either of these fit on my car? (they are for v8's, the flow is only for 86-91 also.

also throw in the fact that im gettin a direct replacement cat converter (catco) wit 2.5 in outlet.

 

For your car either one will produce the same performance, it is emmisions legal, and will fit except you just need the smaller piping.