Hi I have a sister car R400 (same colour I think, Audi Kingfisher blue ?), but mine is a bit noisier. Was tested at goodwood recently at 100db @ 5400, it does pop and bang a bit with no load, but was fine on the track no issues at all with drive by noise when other cars were being pulled. I am at Brands on the evening of 28th so hoping all will be ok. What silencer do you run and what do you use to repack ? Thanks Mark