Hi guys, Finally bit the bullet and got my backbox chop done. Had a Milltek full system on previous which was a little quiet for my liking. I've retained my Milltek backbox though as I'll be honest and say it's a little louder than I thought it would be! Do like the sound though, it just vibrates abit inside a little so debating how long I'll keep it for. Anyway, here's a quick video, sure most of you have heard one before: [video=youtube;x_AmbuR34Ps]https://www.youtube.com/watch?v=x_AmbuR34Ps[/video]
It can be failed on excessive noise, but you would need to have a strict tester for that! You should be fine.