2k6750

iTrader: (6)

Alright guys, I've searched a few times now and can't find all my answers anywhere. I need to get some new hardware for my Greddy and don't know what sizes they are. I'd like to buy the stuff before I take it off. The main thing is the downpipe(have a tony going on). But I figure while I'm in there why not replace the crappy greddy stuff. Anybody know what all I need for the DP to turbo, turbo to mani 8x1.25 I think?, and do the studs in the head generally suck as bad as the greddy?