Just failed two sva's due to noise, runing a foam filter but changing to an airbox, also lagging inside the bonnet and side pannels with accoustic foam.
My can is 6" dia by around 25" long. Just wondering if my can is big enough and has anybody alse had issues with the cbr954 and noise. I measured 108db at my last test

dunno the dims but i use the zorst from aries motorsport, its £340+vat though

My 893 runs under 98db with a car muffler on it. One of those "turbo" mufflers. Much quieter then a glass filled can and not really more restrictive.

Ugly though.