Thanks everyone lots of good reading first post. Just installed a set of dipricol gauges, my question is about my boost gauge. I can hit and hold 25-26 psi,this is on a bone stock 01 etc auto. I tapped the intake horn for the fitting. Just wondering if you think it is the gauge or something else, it is throwing no codes or check engine light. Making sure before I call for a new gauge, because I used dipricol on last two trucks and always had good luck. Thanks