ok so I'm gonna dump my old exhaust in a few days...probably for the DC exhaust cause I know a place that has them for a sweet deal price of less than $300 and free shipping. Anyway my old exhaust is the Blitz Nur-Spec and it had to be welded on because it kept slipping from the flange or whatever. My question is how can I remove the axle back DIY style? Will I be able to put my stock/DC exhaust back on with no problem? Or will I have to have a shop take care of the welds?

you can probably drill the welds out if its spot welded or , grind them out