“THE ORIGINAL”… PROVIDES UP TO 85% PERCEIVED NOISE REDUCTION AND 94% FLOW FACTOR Expertly reduces Exponentially Perceived Noise (EPNdB) without impeding equipment performance Designed to take explosive air exhaust noise discharged from valve exhaust ports and muffle it with optimized Constant Velocity (CV) flow factor Exhaust air flows softly to the atmosphere free of noise,… Read more »