BBK VariTune Muffler 2-1/2" Offset Inlet/Outlet 18 x 10 x 5" Oval Body 22" Long - Stainless 3550224-9151- XL Polyurethane Base and Top:

Polyurethane Base and Top:

1987-1993 Chevrolet Caprice

Sway Bar Side Plate

When exposed to atmospheric pressure

Venturi effect chin vents and central rear exhaust vent

BBK VariTune Muffler 2-1/2" Offset Inlet/Outlet 18 x 10 x 5" Oval Body 22" Long - Stainless 3550224-9151- XL Polyurethane Base and Top:These patented BBK Performance Varitune mufflers are the first of their kind in the aftermarket, fully adjustable performance Mufflers that can be adjusted for sound and horsepower by simply moving the adjustment screw in or out from underneath the car with a wrench! These mufflers are available in aluminized or stainless steel, in 2. 5, 2. 75 and 3. 0 and with various offsets to fit most aftermarket and OEM applications. These offset offset Varitune