Will a LT1 cat back fit a 3rd gen? I have my SLP cat back off my 96 WS6 Formula that was replaced with a B&B TriFlow. I was thinking of replacing my IROC cat back with the SLP cat back. I know the y pipe would have to have fab work done. I don't know if it goes over the axle the same way. The DynoMax exhaust on my car has been there for 15 years so I think it could use changing soon. It looks good but is to loud. Sounds like straight pipes because of Lingenfelter motor with headers and no cats. I am sure there is nothing left inside the muffler with all the 1/4 mile runs it has had to take.