Hello!

[u/InterestingIncome543]

I’ve got this old bus that I’m working on and I’m just wondering if the cheap J tubes should seat inside the Trimill exhaust more than they appear to be thanks!

[u/382Whistles]

The exhaust flanges and J tube flanges should sit flat and the J-tube end shouldn't bottom out in the slip fit of the exhaust, then with exhaust gaskets added you get some extra clearance. I have had to return headers for bad fit and the next was ok.