Hi has anybody got a motorcycle engined locost with a Busa or Blacklbird engine in running a Techcraft silencer. If you have can you tell me which diameter and length silencer you are running, and does it pass the trackday noise level. I have tried various different silencers and all are too loud, I have been told that I need a 35" silencer but that is too long to fit down the side of my car, I don't want to restrict any more power from my engine than is absolutely necassary.

cheers