Jones Exhaust F726-8D Full Boar Full Flow Truck Muffler 4 Inlet, 4 Outlet intercoolers Best of all

Best of all

2 V8 1970 - 1973 Plymouth Fury Custom Suburban 318/5

9L/V6 1980 - 1983 Ford F-100 4

A vacuum controlled butterfly valve is utilized to improve flow at wide-open throttle while keeping things civilized and "drone" free throughout

6 V8 1957 - 1958 Chrysler Newport 392/6

Jones Exhaust F726-8D Full Boar Full Flow Truck Muffler 4 Inlet, 4 Outlet intercoolers Best of allOverview: Jones Exhaust Full Boar Full Flow Mufflers are specially designed for gas and diesel trucks. The straight through core design of these heavy duty mufflers provides maximum exhaust flow with boosts that increase acceleration and engine performance, especially under heavy loads. Features Specially designed to boost performance on gas and diesel trucks Straight through core design for maximized exhaust flow Increase engine performance under