http://stores.hi-potek.com/-strse-152/Spintech-Dakota-3-inch/Detail.bokCheck with Hi-potek
The only y-pipe I saw was for the Spintech mid-length headers.Check with Hi-potek
That is the part in my original post that I said I knew about and refuse to use. It has 2 inch pipes from the manifolds/headers into a cat and 2.5 out. Same as my original, if I ma replacing it I am going to go with something that will improve performance rather then the restrictive small stuff. And yes 3 inch exhaust will help the trucks performance. How big is the factory stuff from the manffold? 2 inches. Then cram 4 inches of air coming out into 2.5 inches of space and tell me that 3 inches won't help.magnaflow part#23285... about $185 shipped on ebay and it includes the mandrel bent head pipes ... its not 3" but.... 3" wont really help performance either unless you've done a lot under the hood...