I have a 3 inch catback with a ball/socket style flange, the test pipe that my y-pipe came with is only 2.5. I cant seem to find a 3 inch ball flange to weld on to the test pipe to mate these two. Midas or one of those told me I probably won't find one. Id rather not cut the end of my catback off and put a 2.5 on that.
My only other option is to cut the ends of both and get a 3 > 2.5 reducer to put in there.
Any ideas?

 

They do exist but they are EXPENSIVE

http://www.ebay.com/itm/MagnaFlow-/321316255966?pt=Motors_Car_Truck_Parts_Accessories&hash=item4acff0f8de&vxp=mtr
Magnaflow 10745 Stainless

or

Flowmaster 15930 Aluminized Steel

http://www.ebay.com/itm/FLOWMASTER-15930-Ball-Flange-Kit-Authorized-Dealer-/231089539874?pt=Motors_Car_Truck_Parts_Accessories&hash=item35ce028b22&vxp=mtr
What I did for a friends exhaust was weld on 2 3" flat flanges

 

I think I'll try that route instead, thanks!

 

Got the flanges off ebay and the gasket from the same seller I think about $12 total

 

Found these options on Summit's website. Just searched "summit exhaust ball"

http://www.summitracing.com/search?P...exhaust%20ball

And only $25-$30 each