MagnaFlow Sys C/B 05-09 Ford Mustang 4.6L V8 3inch - 16674

The MagnaFlow 2005-2009 Ford Mustang Competition Series Cat-Back Performance Exhaust System 16674 brings an aggressive, attention-grabbing edge to the deep resonant exhaust note we're so well known for. This exhaust kit is designed to enhance your 4.6L, 5.4L 2005-2009 Ford Mustang with dyno-proven performance made possible thanks to fast-flowing mandrel bent 3in. main piping and 2 Straight-Through mufflers ending in a Dual Split Rear exit with 4in. Polished Welded-On Double Wall Angle Cut Folded Edge tips featuring a sporty finish. The exhaust system's cat-back layout replaces your ride's exhaust system from near the catalytic converter on back. Exhaust system 16674 is engineered to make your vehicle's engine produce Aggressive exterior and Moderate interior sound levels, befitting its competition-oriented design. 16674's direct-fit design makes installation a breeze thanks to the use of advanced 3D scanning techniques. This performance exhaust system is made of 100% durable and corrosion-resistant stainless steel and produced using CNC precision robotic manufacturing, all backed by MagnaFlow's limited lifetime warranty. Please check to ensure compliance with local noise regulations.

This Part Fits:

Year	Make	Model	Submodel
2008-2009	Ford	Mustang	Bullitt
2005-2009	Ford	Mustang	GT
2007-2008	Ford	Mustang	Shelby GT
2007-2009	Ford	Mustang	Shelby GT500

Please note image may vary from product. Also, some items are special order. If delivery time is a concern, please contact us prior to purchase. 

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!