Originally Posted by willwren
Pete, it'* designed to NOT use a gasket. You may induce leaks. That fitting is what you call a 'compression' fitting. It'* designed NOT to fit flush, so the clamping force seals it.
I would strongly recommend removing the gasket you made. I HAVE to use one because my stock tube is too small for the Gen3 SC I swapped to.
That'* exactly what I had thought at first (clamping it forces the flare flat). But I couldn't see how it could tighten it evenly all the way around, with only one bolt off to the side. And since my last one was cracked right at that joint, I figured it was due to overtightening.
I had no leaks today, and the car drove better than it has been for a while actually.
But I'll go ahead and try again without the gaskets. My gaskets were just so I didn't waste $40 on a pipe that I could crack by tightening it incorrectly, since I don't have another $40.
That'* exactly why I'm worried I'll crack it with uneven pressure.
But I know what you're saying.