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MagnaFlow Exhaust Products - Street Series Performance Cat-Back Exhaust System (15671)

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This part fits

  1. 2004 Ford Mustang GT Naturally Aspirated 4.6L V8 cid:281
  2. 2004 Ford Mustang Mach I Naturally Aspirated 4.6L V8 cid:281
  3. 2003 Ford Mustang GT Naturally Aspirated 4.6L V8 cid:281
  4. 2003 Ford Mustang Mach I Naturally Aspirated 4.6L V8 cid:281
  5. 2002 Ford Mustang GT 4.6L V8 cid:281
  6. 2001 Ford Mustang GT 4.6L V8 cid:281
  7. 2000 Ford Mustang GT 4.6L V8 cid:281
  8. 1999 Ford Mustang GT 4.6L V8 cid:281
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About this product

Part #: 15671

Made in the USA and engineered to last, for those seeking increased performance and better economy, MagnaFlow Touring Series Performance Exhaust systems deliver the smooth deep sound you want and the wide-open performance power you need. Our exhaust systems feature straight-through flow designs for the ultimate in unrestricted horsepower and torque for big power while maintaining exhaust efficiency. These systems are an engineered balance of interior and exterior noise levels and are tested against SAE j1169 standards.

More Details

Attachment TypeBolt-On
Exhaust Pipe MaterialStainless
Exhaust TypeDual
Exit PositionDual Split Rear
Exit QuantityDual
Exit StyleDual Split Rear
FinishStainless
Inlet Connection TypeBolt-On
Inlet Inside Diameter2.500 in.
Main Piping Diameter2.500 in.
MaterialStainless
Muffler Body Diameter4.000 in. x 9.000 in.
Muffler Body FinishPolished
Muffler Body Height4.000 in.
Muffler Body Length14.000 in.
Muffler Body MaterialStainless Steel
Muffler Body ShapeOval
Muffler Body Width9.000 in.
Muffler FinishPolished
Muffler TypeStraight-Through
Outlet Outside Diameter3.500 in.
SeriesStreet
Sound LevelModerate
System TypeCat Back
Tip FinishPolished
Tip Length16.000 in.
Tip MaterialStainless Steel
Tip Quantity2
Tip ShapeRound
Tubing Diameter2.500 in.
Additional Documents
  1. Installation Instructionspdf

See what our community says about magnaflow-exhaust-products products

product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
Wanted to improve exhaust flow, as well as beef up the sound of the E55.
Is this your first time buying from this brand? Did you consider other brands?
No
Was it easy to install? Any installation tips that will help others?
Professionally installed
Once you've had a chance to use the product, did it meet your expectations?
Yes
View on Paul's build
Andrew Shofner

124

Andrew Shofner
2015 Ford Fiesta
product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
Good price, good flow and sounds great.
Is this your first time buying from this brand? Did you consider other brands?
Yes. Yes, but found a local shop that could make a cheaper setup and had this in stock.
Was it easy to install? Any installation tips that will help others?
Had a shop do it.
Once you've had a chance to use the product, did it meet your expectations?
Yes. Makes a good sound and I can now hear back fires pretty well.
Any additional comments?
Drones pretty bad at 60-80 mph.
View on Andrew's build
Grant Mathiason

20

Grant Mathiason
2003 Nissan 350Z
product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
Came with the car when I bought it
Is this your first time buying from this brand? Did you consider other brands?
Yes first time
Was it easy to install? Any installation tips that will help others?
Did not install
Any additional comments?
Fitment in the rear is poor
View on Grant's build
Justin Polewaczyk

112

Justin Polewaczyk
2012 Audi A4
product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
I bought this for the Sound and Price
Is this your first time buying from this brand? Did you consider other brands?
nope, yes AWE
View on Justin's build
product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
Only high flow diesel cat available at the time, I wanted this truck to be 100% legal.
Is this your first time buying from this brand? Did you consider other brands?
Yes
View on Timothy's build
California prop 65 warningWARNING: Cancer and Reproductive Harm www.p65warnings.cs.gov

*Some manufacturer restrictions apply.

About MagnaFlow Exhaust Products

MagnaFlow is a performance exhaust business through and through, yet they've embraced the importance of the technological developments over the past 30 and spent those years evolving the CarSound Catalytic Converter business into what it is today. Today that technology is applied to all of their high performance exhaust products, from cat-back systems and universal mufflers to catalytic converters. MagnaFlow stakes their 30 year reputation for excellence on every product they sell - a claim made possible only through extensive testing and stringent quality assurance methods. But you've come to expect nothing less from them and they’re proud to deliver.

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Smoking Tire / The Drive

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Thank you for all the help, really. You guys are awesome. This is all great info and I really appreciate everything you have done to help me with my build.

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Ford Focus ST

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