Finally took the plunge and ordered a Kev fuel mod after owning my XTX for 3 years. It arrived in just 4 days and took minutes to fit. I also removed the snorkel and fitted a K&N filter. ( already had a set of Mtc's) took my first spin yesterday and I have to say it was a revalation! Throttle response is really smooth and the surging pretty much gone. Wish I'd done it years ago. Thanks Kev.