Here's a picture of my newly installed exhaust "tip" really no tip at all, just a 5" pipe.
http://rides.webshots.com/photo/2892389310080251109PyZeSUThe rest of the system is 4" mandrel bent from the turbo to behind the cab. Then 5" and a Magnaflow Stainless steel muffler and some more 5" with mandrel bends to get over the axle.
Grigg