Flowmaster 17312 - American Thunder Cat Back Exhaust System

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Flowmaster 17312 - American Thunder Cat Back Exhaust System

This part fits

  1. 2004 Ford Mustang GT 4.6L V8 cid:281
  2. 2004 Ford Mustang Mach I 4.6L V8 cid:281
  3. 2003 Ford Mustang GT 4.6L V8 cid:281
  4. 2003 Ford Mustang Mach I 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. 2001 Ford Mustang GT Bullitt 4.6L V8 cid:281
  8. 2000 Ford Mustang GT 4.6L V8 cid:281
  9. 1999 Ford Mustang GT 4.6L V8 cid:281
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About this product

Part #: 17312

For the person who is looking for a complete Cat-back dual exhaust system with an aggressive tone. With easy fit in mind, these systems are mandrel bent for maximum performance and include specially selected mufflers. American Thunder systems deliver a moderate to aggressive interior and exterior tone and are suited to the enthusiast who wants their performance to be heard. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, these systems include all necessary parts and hardware for easy installation.

More Details

Exhaust SeriesAmerican Thunder
Exhaust TypeDual
Exit PositionDual Rear
Exit StyleStraight
Heat Shield AttachedNo
Inlet Diameter2.500 in.
MaterialAluminized Steel
Muffler Count2
Muffler Part NumberKit Only
Muffler SeriesSuper 40 Series
Outlet Diameter2.500 in.
Outlet Outside Diameter3.000 in.
Single or DualDual
Sound LevelModerate
System TypeCat Back
Tail Pipe Diameter2.500 in.
Tip Diameter3.000 in.
Tip Quantity2
TitleFlowmaster 17312 Cat-back System - Dual Rear Exit - American Thunder - Moderate Sound
Tubing Diameter2.500 in.
Additional Documents
  1. Certificate of Originpdf
  2. Installation Instructionspdf
  3. Warrantypdf

See what our community says about flowmaster products

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What made you choose this particular product?
Was one of the first mods I made to the car and Flowmaster was a name I knew that was quality
Is this your first time buying from this brand? Did you consider other brands?
Yes, I considered Magnaflow and Kooks
Was it easy to install? Any installation tips that will help others?
Can be easy to install, ran into snags since this was on of the first things I had installed on the car. You either have to drop the rear axle (I did this) or cut the stock exhaust to drop the old cat-back. Also do not use the U-Bolt clamps as the tailpipes had slid out on my kit a few times and caused damage to the tailpipes, just get the tailpipes welded (looks nicer anyway).
Once you've had a chance to use the product, did it meet your expectations?
Like the noise but the drone around 2k can be pretty brutal on long drives. Would probably go with a different brand the next go around just to lose the drone.
View on Cody's build
California prop 65 warningWARNING: Cancer and Reproductive Harm

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About Flowmaster

Manufacturer of performance exhaust systems, mufflers, cold air intakes, turbo boost modules, catalytic converters, race mufflers, headers and numerous exhaust accessories for late model cars, trucks, off-road, Jeeps, SUV’s, classic muscle cars, powersports vehicles and more. Flowmaster® gives you lots of exhaust choices with 12 designs of chambered mufflers, 3 styles of our exclusive “laminar-flow” mufflers and a new line of FlowFX “straight-through” performance mufflers, along with 5 sound categories of exhaust systems, giving you the customer, the power to custom tailor the sound of your vehicle whether you prefer mild, moderate or aggressive tones and sound levels.

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we ship worldwide!

Based in California with 3 warehouses across the country, we’re sending out shipments everyday of the week, even Saturdays. Because your next mod shouldn’t have to wait.

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Wheelwell helps you organize all your stuff for your car, I’ve loaded all my cars on Wheelwell and you can see all the parts I’ve put in them and that may help you make a decision with your own build.

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This is an awesome new site where enthusiasts can get together and figure out what products work best on their ride.

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