Pro Series Muffler - 3.50 Center In / 3.50 Center Turn Down Out -Moderate Sound 1973-ford-e-100-econoline-esi6609811 Head Support - Driver Side

Head Support - Driver Side - 4 in - Black Cloth Cover Included - Aluminum - Natural - Butler Built Seats - Each

Tube End - Weld-On - Threaded - 1/2-20 in Left Hand Female Thread - 1-1/8 in Tube - 0

Power Steering Reservoir Bracket - Clamp-On - Aluminum - Clear Anodized - 1-1/4 in OD Tube - Each

Stagger Gauge - Measures 62 in to 110 in - 1/8 in Increments - Square Tube Design - 3/8 in Thick Billet Arms - Aluminum - Red Anodized - Each

Pro Series Muffler - 3.50 Center In / 3.50 Center Turn Down Out -Moderate Sound 1973-ford-e-100-econoline-esi6609811 Head Support - Driver SideThe Pro Series mufflers work on all applications ranging from street trucks, diesel pullers and RV pushers to every class of racing on dirt or asphalt. During development, at the dyno and track, the Pro Series mufflers consistently delivered performance that is equal to or surpasses open pipe systems, while dramatically reducing sound levels across the RPM range.