I just finished making a new 2 into 1 y-pipe for my manifolds so I can run a single 2 1/2" pipe outside the frame right between the front shackle and the tranny crossmember. Going to run a single muffler under the passenger side and route it out just before the rear tire. I was going to run a full thorley tri-y with their 2 into 1 system for big torque but blowing a muffler off yesterday caused me to step up and make changes right away. I'm only half done but already I have all the room I needed for a 4-link in the rear! /forums/images/graemlins/thumb.gif Anyone else running 2 into one with no cat, or outside the frame?