slip fit good or bad?

[definitiveno]

I was examining the possibility of making my own exhaust with a buddy last night. He recently got his tig and mig certificates as well as a few others, and he asked why not just make expansions and clamp every thing together? I said because the steps will create turbulance......but than he said he wasn't sure how clean he can tig just yet.


I was just wondering how much the tiny steps in slip fit exhausts affect overall flow of the exhaust.



Thanks,
defno

 

[ChicagoGSX]

Slip fit is fine.

 

[anconover]

those little steps are extremely small. Slipfit is actually much nicer IMO than having to deal with flanges and gaskets etc. And just mig it, i wouldnt even bother tig welding it.