MagnaFlow muffler is the straight wide open performance muffler with smooth deep tones. First and foremost the MagnaFlow muffler was developed to be a superior product line of performance mufflers. Wide open performance MagnaFlow mufflers outflow OEM chamber style mufflers by as much as 16%. This reduces engine heat and backpressure and improves exhaust scavenging from the combustion chamber. MagnaFlow muffler minimizes the power robbing effects of the OEM system to restore torque and horsepower to the engine. From aluminized steel, to polished stainless steel, there probably are MagnaFlow mufflers or MagnaFlow cat-back systems to suit your desire. All MagnaFlow cat-back systems feature fast-flowing mandrel-bent stainless steel tubing, a straight-through MagnaFlow Performance Muffler and a polished stainless steel Magnaflow tip. Magnflow cat-back systems are designed to increase horsepower, torque and gas mileage, they also bolt directly onto your vehicle.