I have a 2005 YZF450 like the one in the pic shown below, what methods have people used to make them quieter? I have a FMF Q pipe but the build quality is complete rubbish. It constantly blows the baffles out and just generally is badly made, poor quality everything!!!!!!!! What have people done to the stock pipe to reduce the noise? What are DB dawg's like on these pipes? Any other mods, I have a workshop so can do some fairly extreme mods to it if they get good results. Cheers, Lennie.