melbakid Sr. Wheeler Posts: 584 Joined: Dec 09, 2014 Browser: Mozilla 11.0 OS: Windows 8 Logged Sparky It's a shame that they won't listen to you. You tell them what you want for a reason, but they always know better! I am building my own exhaust for my Tin Top. The only thing I don't have is a muffler yet. I haven't been able to find one that I like. I'm doing 2" all the way. I have a stainless header with the O2 sensor below where the 4 pipes merge. Then I will have a 2" flex connector, then a new cat, a short piece of, then the muffler, then finish with pipe over the axle and 90 out just under the bumper. I have all mild steel mandrel bent pipe pieces that I will fit together. The exhaust under there now is an abomination!