Originally Posted by JS4KIKZ

I'd go with the 4" TI exhaust, which is what I have. My car is down because I had to ship my T78 out for repair, but It should be up and running in 2 weeks. As for the 4" DP, if I were you, I'd talk to a guy named RJ on tidewaterracing.com who does custom welding. I believe his screen name on there is HJ11 .

BTW: A 4" DP wont scrape or hit anything.