Sooooooo... I have basically full bolt ons minus downpipe and I have mountune charge pipe+intercooler pipes... What "stage" cobb tune would be appropriate? I'm gonna go with stage 2, what you guys think? One other question.. I'm running a mountune tune 91 Octane but have since moved and have only 92 Octane available, is this a problem? I've heard you can run one less Octane but should never run +1 Octane. Thanks in advance ?