i have heddmans comp plus,these have been the longest lasting headders i have ever had in 30 yrs of of v8 jeeps.the muffelers are a chambered type,like flowmaster only round (not glass packed) from a exhaust shop then went to a local place that sells parts for over the road trucks & got the turn outs, i have ground the weld smooth since the pic was taken.
I made these from Chevy 350 Headman and LS1 manifolds. Then Jet hot coating and the mufflers are Hooker chrome side pipes.
I would love to go side exhaust if I could find something that looks like the 60's to mid 70's Vettes. $1100.00 for used covers? (link below)
Since my Pacestter "in frame" headers wasted 1.5 hours of grinding to fit the block, and still not sure they'll fit the frame...I may go side pipes.
Some more bits of advice.
Since then I've replaced the rear pipe mount with springs. The mounts that came with developed a leak after about 2 weeks in the mountains. Too rigid exhaust and the soft motor mounts were the culprit.
Second, Chain both sides of motor, to limit it. Give it a half inch of travel. Check it after some wheeling. At first I did one side, that fixed the driver/torque side. The passenger/Compression braking side gasket still gave me a problem. Chained it and no more problems.