I will aii lol there's tony who does a tune polish ,reseal and service for 75quid but he says you wont be able to get the ping from action away, so I might ask other tuners what their thoughts are ,I know a and m are good from what people have said, I'm awaiting a reply from si as he said he'd ask sandwell for prices etc ,any others I should know about ? Malc was on about he heard the x3 silencer in action ,but the huggett shroud is real nice, but no one can answer me on the effectiveness except ,ye it does the job ,which to me just says thetes cheaper out there that work just aswell..I'm happ