Vari-Tune BBK Performance Parts 41115 Axle Back Exhaust Kit 2.75 in. Pipe Dia. Single 4 in. Brushed Stainless Tips Incl. All Required New Hangers/Hardware/All New Clamps 304 Stainless Steel

More about this item : Vari-Tune BBK Performance Parts 41115 Axle Back Exhaust Kit 2.75 in. Pipe Dia. Single 4 in. Brushed Stainless Tips Incl. All Required New Hangers/Hardware/All New Clamps 304 Stainless Steel

These performance mufflers are American designed and built, being the first of their kind in the aftermarket.

They are 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.

BBK Varitune performance mufflers utilize a unique internal power valve.

When in the closed position, the valve blocks the exhaust flow, forcing it through all three chambers of the muffler for a classic mellow sound.

When in the open position, the valve opens the exhaust flow, allowing it to take the path of least resistance, acting more like a straight-through muffler for an aggressive throaty exhaust note.