P.S. I wasn't joking either. My 3" Turbo Back exhaust for my Jetta from APR was bought that way. It's more effective than you might think. The trick is to keep it somewhere you can't see and need a latter to get to. Just put the money in and don't count it. It's better if you don't know. Check it every three months or so, and BAM!!!....new K04s. haha, sounds stupid but it works, I SWEAR BY IT!!!