Hey peeps.I kinda made a mistake with my exhaust setup so far mainly im talking bout is that flange that bolts the downpipe to catback is gone cuz im running a 2.5in straight pipe from cat delete to glasspack. Lately i been looking at SD headers and may end up getting those but my question is would it be ok to have an exhaust shop cut part of my "half a$$ed" downpipe and let them weld up the header downpipe or is there another way around that?and i also hear that SD headers if welding, require a special kind of weld like a TIG or something?any help/ideas.