MagnaFlow 21+ GMC Sierra 3500HD DPF-Back Black Filter-Back 5in Single Passenger Side Rear Exit - 17072

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MagnaFlow is known for producing high-performance exhaust systems. Founded in 1981, the company has earned a strong reputation in the aftermarket automotive world for creating exhaust products that improve both the sound and performance of vehicles. MagnaFlow offers a wide range of products, including cat-back exhaust systems, downpipes, mufflers, and headers, all designed to enhance engine performance by increasing exhaust flow and reducing backpressure.

One of the key features that set MagnaFlow apart is its use of stainless steel in the construction of their exhaust systems, which ensures durability and resistance to rust and corrosion. Their signature mufflers use a combination of straight-through and chambered designs, providing a deep, aggressive exhaust note while also reducing unwanted noise.

MagnaFlow’s exhaust systems are popular not only among car enthusiasts looking for a better driving experience but also among racers who need performance-oriented exhaust solutions. The company’s products are designed to be easy to install, with many offering bolt-on installation options for a hassle-free upgrade.

In addition to performance, MagnaFlow takes environmental responsibility seriously. Many of their exhaust systems feature high-flow catalytic converters, which help reduce harmful emissions without sacrificing performance. They also ensure their products comply with EPA standards, making them a legal choice for street use in many locations.

​Fidanza Performance, founded in 1997, is a leading US manufacturer of high-quality lightweight aluminum flywheels, precision adjustable cam gears, and high-performance clutches. With nearly 20 years in the automotive performance market, Fidanza is renowned for its expertise and respected globally, offering products for a wide range of vehicles, from European sports cars to modern muscle cars and imports. The company originated in racing, with founder Lou Fidanza's success in the SCCA leading to the creation of specialty parts like aluminum flywheels. Fidanza has since expanded its product line to include cam gears and performance clutches, gaining a loyal customer base and worldwide recognition. In 2023 Fidanza opened the SpeedParts4Less Marketplace which sells other manufacturers quality high performance parts!