Universal 2-1/2 Varitune Adjustable Muffler Double Offset (439 Stainless)-31015 earls-performance 88/8 V 1968 - 1973

88/8 V 1968 - 1973 GMC C15/C1500 Suburban U/K/8 V 1968 - 1973 GMC C15/C1500 Suburban 3

4L V8 2010 Ford F-250 Super Duty King Ranch 391/6

25/8 V 1987 Chevrolet R20 3

CARB EO Number: D-193-163

Year Make Model Submodel Engine Size 2001 - 2005 Chevrolet Silverado 2500 HD 6

Universal 2-1/2 Varitune Adjustable Muffler Double Offset (439 Stainless)-31015 earls-performance 88/8 V 1968 - 1973These patented BBK Performance Varitune mufflers are the first of their kind in the aftermarket, fully adjustable performance Mufflers that can be adjusted for a louder or quieter sound and horsepower by simply moving the adjustment screw in or out from underneath the car with a wrench! These mufflers are available in 439 stainless steel, in 2. 5 in., 2. 75 in. and 3. 0 in. and with various offsets to fit most aftermarket and OEM applications. These