I'm toying with the idea of fitting a baffle to my racefit black. It will need sending off to have a cowl fitted to the end to provide something to screw the baffle to. Not too expensive but i prefer the look without it. The excessive noise is getting on my tits tbh and its spoiling my enjoyment of the bike. Plus it should make the bike more mot friendly as my local tester said it would be unlikely to pass. What i want to know is do they make much of a difference? Racefit are unable to provide an attenuation decibel figure.