Noticed Amjads thread and that got me a lil worried now! How is it tested? Do they test before you go out on track, or do they test as your going round... Spoke to Ricky@Race-Tech, he said lowering the boost would make it quieter, but obv that would suck... If the mics are on the track, where are they, I could lift off as I go past them?? Any advice on this would be brill! A straight through 3inch system and a gt30 screaming out is going to be loud!