have any one hear if there is a 3 inches exhaust system for the tc

3" is pretty big. My guess is you're only running 8-10 lbs boost max. you really don't need anything bigger than 2.5. if you want 3 you'll have to have it custom made

Good general rule of thumb...
400HP and under - 2.5" is perfect
anything over that 3" will be ideal