MagnaFlow Exhaust Products 16674 - Cat-Back Exhaust Systems

Description

The MagnaFlow Ford Mustang Competition Series Cat-Back Performance Exhaust System 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 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.

Magnaflow Competition Series Stainless Cat-Back System

Specifications

BrandMagnaFlow Exhaust Products
Part Number16674
Clamping TypeRound Band
Clamps IncludedYes
Exhaust Tip ConnectionWelded-On
Exhaust Tip CutAngle Cut
Exhaust Tip Diameter4
Exhaust Tip EdgeFolded Edge
Exhaust Tip FinishPolished
Exhaust Tip Length7
Exhaust Tip ShapeRound
Exhaust Tip WallDouble Wall
Exit StyleDual Split Rear
Hangers IncludedYes
Inlet TypeClamp-On
Main Piping Diameter3
Muffler Body Height5
Muffler Body Length14
Muffler Body Width5
Muffler FinishBrushed
Muffler Quantity2
Muffler TypeStraight-Through
Pipe MaterialStainless Steel
SeriesCompetition
TypeCat-Back
Weight54 lbs

Vehicle Fitment

Year(s)MakeModelSubmodel
2005-2009FordMustangBASE
2007-2009FordMustangShelby GT500

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MagnaFlow Exhaust Products P/N 16674

Cat-Back Exhaust Systems

$1,231.00

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Professional installation available
We install this. Labor runs $140/hour and the time varies by product, so call your local store for an exact quote.
800-953-7108
Nothing is charged for it today — your local H&H store works out the exact cost when they call to say your order has landed.
Built to orderShips direct from the manufacturer to your local H&H store. Call 800-953-7108 for lead times.

If an item can’t be sourced, a refund will be given and the order will be canceled.

Free store pickupReady at your local H&H
22 storesAcross the Southeast
Family-ownedServing trucks since 1987
Installation availableLabor from $140/hour — ask your store
Fitment guaranteeIf it doesn't fit, no restocking fee Details
Price matchFound it cheaper? Tell us before you buy Details
Warranty handled hereClaim it at the store, not by mail Details
4.8 out of 5 stars, 5,735 Google store reviews. These rate our stores, not this product. Read the reviews.
4.8
5,735 reviews
Store reviews on Google

Rated 4.8 across 24 stores

Every review below is a verified Google review of an H&H store — written by real customers about the people who sold, fitted and stood behind their gear.

Gary Holtzclaw
Oxford · 1 day ago

Bedliner installed, in and out less than 20 minutes

Don Traylor
Jonesboro · 1 day ago

Brian was so very professional and knowledgeable of the job he performed!!!

Ryan Spikes
Lilburn · 2 days ago

I purchased a roll up cover that came damaged from the factory. Jim was able to kindly replace my broken part with another one. Exceptional customer service.

Zachary Brooks
Marietta · 3 days ago

Great service as always. Needed something quickly, the store had it in stock and was able to pickup within minutes. Justin was helpful and very accommodating. Highly recommend!

Allen
Gainesville · 3 days ago

Just had Arcane Warrior roof rack installed. Unbelievably quick and convenient service. Blake and Garrett were readily available and exceptionally personable. Highly recommend them for any and all truck accessory recommendations, provisions and installations!

Michael Burgess
Cumming · 4 days ago

Good pricing, fast service. Quality products.

Ike Newton
Trussville · 4 days ago

Good experience. If you need truck accessories, these are the guys.

Eric Cohen
Madison · 4 days ago

⭐️⭐️⭐️⭐️⭐️ WOW – That’s How You Stand Behind Your Work H&H installed my airbags last year, and recently I ran into an issue where they stopped working. From the very first call, they were incredibly helpful and patient, walking me through troubleshooting over the phone trying to save me a trip. When we couldn’t get it resolved, I called first thing Monday morning and they had me scheduled right away. They got the truck in, diagnosed the issue, and replaced the parts — completely under warranty — no hassle, no excuses. A couple hours later I was back on the road. That’s rare service these days. Professional. Honest. Stand-up guys who truly stand behind their work. H&H is hands down the place to go for all your truck needs. 💪

John Nickell
Pensacola · 4 days ago

Very knowledgeable, great selection and fast install .

Reviews of H&H Truck & Outdoor stores, sourced from Google. They rate our stores and service, not this individual product.