never heard of fuel. but was looking to get something a bit throaty, i see a chap on bandit thou recently and he had a delkevic stumpy on, way too load and not road legal, but they do a 350mm road legal for £125, I did have test ride on a fazer before I bought mine and that had a micron on and sounded wicked, but they dont seem to make them anymore. I notice black widow and scorpion around same sort of dosh