i think that i have the flowtech shorty headers with 2 and a half inch collectors. i need a y pipe and was wondering if the company makes on that is at least 2 and a half inches where it goes into the cat. im putting on a 3in flowmaster catback and want that as a minimum. otherwise i have the possiblity of fabricating a y pipe. i bought the flowmaster y and a set of 2 and a half in collectors in case i have to fabricate one. any help would be appreciated for either or. thanks

 

They Y-Pipe is 2.5"