I've got the V2.2 and it's easy to fit if using the right technique.
First time I fitted the tip took me ages whilst cutting up my arms, I've refitted it since and it took 30mins, which is a big improvement !
Take top of the air box off first to give yourself more space, no need to completely remove.
Fit the billet adaptor onto the bottom of the tip first and then push onto the turbo, when you fit the billet into the tip make sure the grub screw is in a position where you can get to it easy with your Allen key once on the turbo.
Have a short and a long flat/Phillips depending on hose clips handy.