[sfont66]

I have the Speed Engineering long tubes on a Ls swapped 72 C10. At the time I was short on cash, and trying to get my project back together. I threw together a cheap exhaust using mostly used pipe I had laying around. Out of the headers it’s 3” , then changes to 2.5” at the H pipe, then it runs through the trailing arm crossmember and out the side in front of the back tires.
I did buy the v band clamps but chose to save them for when I do a nicer exhaust, ( I hope to make it all 3” soon)
Like others have done I used the butt style SS clamps from Summit racing. The butt style are quick and easy to work with, and have been working well for more than 1200 miles this past summer.