GMS Test (Part 1 of 2): Big G diesel module and monitor on Ford 6.0L Powerstroke

Granatelli tests their Big G diesel power module & in-cab monitor on Ford 6.0L Powerstroke (Part 1 of 2)

GMS, Granatelli, Granatelli Motor Sports, J.R. Granatelli, JR Granatelli, diesel, powerstroke, cummins, duramax, diesel modules, diesel performance products, diesel power adders, diesel in-cab monitors