With the help of a welder friend, we just finished the rear exhaust on my LS7/Graziano.
Here is what we did:
Parts:
1) 2 FlowMaster Hushpower DBX mufflers http://www.summitracing.com/parts/flo-13014310
2) 1 U-Bend http://www.summitracing.com/parts/sum-622004-ss
3) 2 clamps...