ohlins shock/arrow race exhaust gen 1

Guys a double question here... First to check the ohlins shock top mount bolt.. Bolt in from top right(obviously) then nut other side..(feeling stupid now) its just there is perhaps a mm gap between shock bush n frame.. I realise when loaded it wont move but u know what its like when u start questioning ur self.. Also gap between frame and bolt where it comes out through frame where you spin nut on... Pt2.... Arrow race exhaust gen 2 but gen1 flanges..am I right in thiniking the 2000 model linkages need changing for 02 models for clearance?.. And where can I get link pipes as the int diam on the arrow system is 52mm.. Thanks to all who can shed some light