Adding a highflow cat to dats Y pipe

[Midias]

OK I keep getting questions about how I am adding a highflow cat to my Y pipe. First all I do not have a normal catback mine is custom it is actually the first custom catback I ever did. NOW it currently has NO flanges it is all welded together. The highflow cat I have is welded to the stock downpipe I am going to cut it off and extend each side to fit my needs I have allready bought these flanges and have 2.5 inch pipe. here are some pics of the cat and flanges as well as my custom cat back. I will be adding flanges to my catback so I can unboolt everything. Lastly YES I know it is a bit crooked I will be fixing that too it was my first catback and I was still a newb.