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Description
MagnaFlow Sys C/B 05-09 Ford Mustang 4.6L V8 3inchThe 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.
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.Installation Instructions
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
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4.8 ★★★★★
Based on 12 reviews
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Product Reviews
★★★★★ 5
Very good
Color: 14AWG-2 Lead
Great lights, no complains
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Reviewed in the United States on June 8, 2025
★★★★★ 5
Why Struggle? It’s as easy as 1 , 2 , 3
Color: 14AWG-2 Lead
Love how simple the harness is! Bought this for a set of ditch lights for a 99 4runner. I love how much wire they give to let you run the wire to where it needs to go. 1st time buying and will come back for more in the future.
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Reviewed in the United States on December 10, 2025
★★★★★ 4
Quality but short.
Color: 14AWG-2 Lead
Quality built harness but I wish they would make the switch wireing long enough to go from the dash to the battery area on film size vehicles.
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Reviewed in the United States on December 24, 2025
★★★★★ 5
Fit and easy to install
Color: 14AWG-2 Lead
Exactly what I needed. Price was a lot better then I expected. Easy to install. Nice find
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Reviewed in the United States on June 8, 2025
★★★★★ 5
Great product
Color: 14AWG-2 Lead
A lot cheaper than getting wire, a relay, connectors, fuse, etc. Great durability, like the extra coating over the wires. Mounted the relays in a spot where they get totally soaked. They were sitting in water when I tested them out they works great so I’d say water resistant is an understatement. Overall great product.
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Reviewed in the United States on October 24, 2022