That's what I'm on about...making things quiet...If any one's curious have a look at
http://www.youtube.com/watch?v=iDTTOa77efs and check out 'Car Chemistry' exhaust inserts. They both work on the same principal. I will have a go at building a similar insert to go into the mufflers which will reduce noise and create the needed back pressure for the engine. My sound level meter arrived today so soon I will start to 'create'.