D.I.D chain & Kit oil catch can.
I think these might be for use with the race ECU? Not sure.In a gen4, they are nice, but in a gen5, they are useless, like the oem ones.
you can not change anything unless you are on the side of the road...
ahhh and Woolich is not developing any more the zx10r gen5 from long time ago...... so do not wait for that one....