I have been smacked down on other forums for mentioning something that has been covered in another thread. I read a post on here from 08 or 09 talking about plug and play. The only thing I got from that was not to buy crap from eBay. What are "crap" pip tunes? I am currently thinking about Vishnu PROcede 3 or Juice Box 4. Are those crap? If so, why? I'm new to this forum, but not to BMW. I LOVE the twin turbo, and I'd like to push them a bit more.