What have you guys done to your cross-over pipe to: 1) clear the front driveshaft, 2) not hang down and snag on rocks, 3) remain emissions legal? Mine hangs down right now but I was thinking about running both pipes from the manifolds to behind the t-case and then crossing over. To do this, the cat will have to be moved aft about a foot. I checked with an emissions inspecter up here and he said the cat needs to be left at the distance from the engine that the factory originally put it. Alaska emissions laws won't allow true duals, even if I dual the oxygen sensors and cats. What have you guys done? Also, I will be clocking the t-case in the next year so I need the exhaust up so I can fab and install a skid plate. Oh yah, it's a '90 V2500 Suburban with 10 bolt front, 14 bolt FF rear with Detroit locker, 4.10's, 6" front springs, rear shackle flip with extended cross tied shackles and zero-rate. 350 cid, TH400, 241C.