Say goodbye to the boxes and gauges that were once a must for controlling and monitoring nitrous activity. This new Progressive Nitrous Controller or “P-Gauge” (PN 15535; $399) from Nitrous Express [(940) 767-7694; www.nitrousexpress.com] features all the functions of a full-on, progressive nitrous controller, including multi-point ramping and multiple inputs and outputs in a package that’s perfect for a stealth fit and function in a juiced ’Stang. We aren’t the only ones who think highly of this new technology from NX, as the P-Gauge received props from SEMA as the “Best Performance Street Product” at the show.