MagnaFlow D-Fit Muffler Replacement 409 SS 3.5in 19-21 GMC Sierra 1500 - 19534

MagnaFlow got its start as a natural extension of Car Sound Exhaust, the parent company to MagnaFlow. Car Sound Exhaust specializes in superior catalytic converter and performance exhaust technology, and has been doing so for the past 35+ years, earning their reputation as an international market leader. In addition to the MagnaFlow brand, Car Sound Exhaust also represents Rumble and BRExhaust, further cementing the company as an industry leader in all areas of replacement and performance exhaust.

As a market leader, MagnaFlow uses the best available components and the latest technology to ensure the highest levels of performance and longevity. Product offerings range from direct-fit catalytic converters and full performance stainless exhaust systems, to universal mufflers and builder’s kits which can be used to fabricate an exhaust for any application. As an ISO-9001 certified company, MagnaFlow stands behind its ability to perform and backs it up with a lifetime warranty.

Since founding the company in 1981, one thing has always been consistent: automotive enthusiasts always want more MagnaFlow. With a massive research & development environment, MagnaFlow utilizes market-leading technology and is home to several in-ground dynamometers, multiple flow benches, and a host of highly sensitive sound testing equipment to ensure that every new part passes stringent quality and performance standards before being approved for manufacturing. If it doesn’t produce power, we don’t make it.