BBK VariTune Muffler

These 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, in.5",.75" and 3.0" and with various offsets to fit most aftermarket and OEM applications. These are offset/offset Mufflers that are designed to fit many car and truck applications including most Ford Mustang applications. These 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, in.5 in.,.75 in. And 3.0 in. And with various offsets to fit most aftermarket and OEM applications. These are offset/offset Mufflers that are designed to fit many car and truck applications including most Ford Mustang applications. UNIVERSAL -1/ VARITUNE ADJUSTABLE MUFFLER DOUBLE OFFSET (439 STAINLESS) Vari-Tune Adjustable Performance Muffler.