Need some exhaust help please.

This past weekend I installed my new JBA cat back exhaust system &N it sounds nice, but I noticed that I have a little exhaust leak from the y-pipe where the 2 pipes come together just before the flange where it bolts to the down stream cats. The y-pipe has the 2 upstream cats in it & I was wondering if anyone here has run into the same problem & what you did. I found a new y-pipe w/the cats from magnaflow but it has 2 bad reviews saying the pipe didn't fit good. I wonder if I purchased 2 cats & took them to an exhaust shop & had them make up a new y-pipe?. Any ideas?. BTW my 00 Ranger is a 4wd & 4.0L if it matters.

If you have an exhaust shop, take the truck in and see if they can just fix the leak in the existing pipe.