After reading threads regarding the Magnaflow custom exhaust set-ups I decided to go this route. I'm doing this in 2 stages. I went with the Magnaflow 14829 "street" version because I wanted a mellow sounding exhaust. Stage one was just adding the mufflers to my stock piping. I know should of done this all at once but y buddy is trying to source me some mandrel bent piping AND I'm waiting to get a downpipe to add. Stage 2 will be all the piping, resonators, and downpipe. Here is a picture of the 14829's on my Avant