SLP LoudMouth for 2014-2015 GM Trucks Produces Dyno-Proven Gains
A couple of weeks ago, we told you a little bit about SLP’s Power Pack Systems for 2014 and 2015 GM trucks powered by fifth-generation 5.3L and 6.2L engines. This week, we put our stainless steel LoudMouth to the test on our in-house chassis dyno to bring you horsepower and torque numbers. After swapping out […]
