http://www.compcams.com/ The guys at Pro-Dyno install a pair of stage one Thumpr™ Cams in a 2006 Ford Mustang. Watch the step-by-step installation process and hear the before and after difference in exhaust note delivered by the nasty-idling characteristics of a Thumpr™ Camshaft.

Facebook:   / compwins  
Twitter:   / compcams