An what a difference it makes over the jerry rig that came with the truck. I went to the local muffler shop and had him copy the head pipe using 2.5" aluminized tubing. Then I cut the flange off as close to the top as possible and had him expand the end so it fit snug inside the 2.5.. I welded the head pipe up and then added a flowmaster that was laying around my garage for too long. I picked up some scraps the guy had laying around the muffler shop and it turns out one worked perfect for a tail pipe. So my grand total for about 14 ft of tubing, clamps and hangers came out ot be $18. It might not be the perfect setup for a turbo but for the price it good enough. It't not pinning my head against the seat but it works alot better the the old exhaust. The old system was a combo of 4 different diameters of rusted tubing, shotty welds, 10 clamps, ridiculous hangers, and a worn out cat and glasspack painted day glow orange.