I posted my 100% stainless catback for $599 shipped with a 23lb weight savings and dyno sheets backing up my 15 whp 20 wtq gains. Only thing it lacked was tips which myself or anyone else could have added for cheap.

Pics on post #49 and #183 of this thread:https://www.crossfireforum.org/forum...t=22326&page=3

Not one person bought it, i ended up parting it out.

It will be a fun project for you no doubt. Have fun building the y-pipe....or burns stainless sells them for around $200. If you use twin canisters youll need two.