I have two flanges welded onto the ends of my cat so that it just bolts up between the cat-back and y-pipe. Does anyone know where I can get some of these flanges to weld to a straight pipe? I think they're four bolts and my friend called them ball-flanges?

 

Any exhaust shop can hook you up, my flanges have 3 bolts.

 

I went to every muffler shop in town and no one had this flange. I bought a set of these online.

If you need a 3" flange you can have one with the bolts and gasket for $12 shipped.

 

No, that's not what I'm talking about. I need something that's more of an oval/rectangle shape. One has two bolts and the other has four. I'll take it to a local shop and see if they just have some spares since I can weld them myself.

 

Is this what you are talking about?

 

yes, I believe that is exactly what I'm looking for. Where did you find that?

 

If you dont find what you exactly want, you can make half the pipe with this fitting and any 3"pipe:




It is a better version of the one fitting you are looking for.
3" Pipe fitting is $15.00 shipped.

 

That's the one that's on the rear, connecting to the cat back. But the front is a four-bolt plate similar to the one in the other picture. Where did you find those? I may be able to make the front one myself out of a raw plate if I can't find one already made.

 

search for " test pipe ", I know someone sells them

 

The picture of the one that I put on there is a test pipe from Mac. I don't actually have one, but I think they sell them on their website. If I am not mistaking, GM actually sells that rectangular flange, though I could be wrong.