I have found a source for the kit and fitting, apparently a lot more complicated, not to mention expensive than what I thought, but by all accounts the benefits and gains are big, so will be wanting you Nick plse to do me a custom map around the kit, including pre tuned and tuned dynos probably! Have you got a documented price for this sort of tuning plse Nick, bearing in mind I already have one of your Stage 1.5 maps?
Many thanks
Andrew