basically all i have done to my car is the entire exhaust except the manifolds which is 2nd on the project list (after the fuel pump) and would a tune help out my car also what would it cost
EDIT: i also want to do a 180 tstat

 

You can call around locally see if some can handle it. I checked PCMforless website they do not list the 3.4 as supported. They do list the V8's for the 95. You might was to give them a call.

http://www.pcmforless.com

 

agree with gorn give pcmforless a call and see if they at least know someone that does tune the 94-95

 

A Tune will help a lot...i know a guy with a GTO with just a k&n, exhaust and tune it is a beast over a stock car