Autometer 2-1/16in 15PSI Boost Digital Stepper Motor Sport-Comp Gauge 2013-gmc-savana-3500-lt-esi2175317 This Axle-Back system does NOT

This Axle-Back system does NOT have AFM valves but is equipped with NPP valves

When tuning an engine using wideband AFR feedback control on an inertia dyno

The included tubes are powder coated wrinkle black and are constructed of mandrel-bent aluminum for maximum airflow

or modification to the original dash

Autometer 2-1/16in 15PSI Boost Digital Stepper Motor Sport-Comp Gauge 2013-gmc-savana-3500-lt-esi2175317 This Axle-Back system does NOTForced induction applications require precise monitoring of the boost pressure being created by your turbo or supercharger to get the most power safely from your engine. AutoMeters Digital Stepper Motor Boost Gauge provides the most accurate reading available, unparalleled response time and smooth needle movement. Designed for diesel or extreme boost applications, these gauges include a highly advanced 1 8 NPT Pressure Transducer and wiring harness