Should I get carbon cleaning for my air intake (burns away all the junk that builds up, what I was told)? Its $80 (normally $130) in feb at the shop I take my car or is it a scam? I might be calling it wrong, but it when they burn off all the junk the builds up in your air flow system. I plan on getting hv3 air intake inserts, a down pipe and a reprogrammed PCM afterwards. Whole reason why I am considering it.