My Roadracing exhaust has no clearance issues. It's from a 600/750 engine & had one bend slightly modded to suit the 900's deeper sump & sidestand in the way. Also, once the steel wool packing is replaced with fibreglass & the steel wool around the restrictor is removed the bike runs great & is much quieter. It's pretty quiet at idle, & only goes very loud when on the power. Restrictor removal or repositioning closer to the end of the muffler would do wonders, i think!
A shame the mini-review on this site has put a lot of people off what (with a little effort) can be an excellent exhaust. And it looks awesome!!
A shame the mini-review on this site has put a lot of people off what (with a little effort) can be an excellent exhaust. And it looks awesome!!