haha very mixed,ive got just a scorpion backbox (oval type) and it has a nice quiet burble on tickover,but once driving i cant hear it,and when i toe it all i hear is that k&n roar, and while im here the backbox i removed was a standard 1 with vw part number and vw embrioded etc on it, but its stainless ive never seen 1 before:S are they all stainless standard??cus personally i think its better quality than the scorpion,lol