I installed my Micron on my 05' ZX10 a couple of days ago and already went through the heat cycle with her. There are no leaks. I'm not getting a warm and fuzzy. It just isn't the throaty sound I wanted. My buddy has one on his R6 and it roars. My R6 has a Yosh TRS and is killer too. I can hear the engine over the exhaust. It does get a little meaty in the higher rpm's and at idle, but cruisin around is quite quiet. I might add, it looks killer blk/grn. Does the butterfly valve have anything to do with it? Is this not the can I was looking for?