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Flowmaster 817749 American Thunder Axle-Back Exhaust System

(2015-2017 Ford Mustang)

Part of: Flowmaster American Thunder Axle-Back Exhaust System

Other options in this family: Flowmaster 817942 Flowmaster 818162 Flowmaster 817746 Flowmaster 817460 Flowmaster 17421

Manufacturer

Picture for manufacturer Flowmaster

Part Number

817749
10 reviews
Sale Price

$949.95

1 left at this price

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Usually delivered within 2 days

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Product Details

The Flowmaster American Thunder Axle-Back Exhaust System delivers an aggressive, deep exhaust note with performance gains you can feel. This complete bolt-on system features mandrel-bent stainless steel tubing and Flowmaster's renowned Super 44 mufflers, engineered to maximize exhaust flow while producing the signature American muscle sound.

Key Features:

  • Super 44 Performance Mufflers deliver aggressive sound with minimal interior resonance
  • 3.00-inch mandrel-bent stainless steel tubing maximizes exhaust flow and reduces backpressure
  • 4.00-inch polished stainless steel tips provide a premium finished appearance
  • Dyno-tuned design optimizes horsepower and torque gains
  • Utilizes factory hanger locations for straightforward bolt-on installation
  • 304 stainless steel construction resists corrosion and ensures long-lasting durability
  • Backed by Flowmaster's Lifetime Limited Warranty

This axle-back system replaces your factory exhaust from the rear axle to the rear bumper, making it one of the easiest performance upgrades you can install. The American Thunder series is designed for enthusiasts who want maximum sound and performance without sacrificing quality or reliability.

Products specifications

Fits

2015-2017 Ford Mustang

Tip Cut

Angle

Tip Edge Style

Cut

Tip Finish

Polished

Tip Shape

Round

Tip Type

Double Wall

Tubing Material

Stainless steel

Outlet Diameter

3.000 in.

Inlet Inside Diameter

3.000 in.

Outlet Outside Diameter

3.000 in.

System Type

Axle Back

Prop 65

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

California Proposition 65 Chemical Name 2

Chromium (hexavalent compounds)

California Proposition 65 Chemical Name 1

Nickel (metallic)

California Proposition 65 Chemical Name

Chromium (hexavalent compounds)

California Proposition 65 Chemical Name

Nickel (Metallic)

Heat Shield Attached

No

Color

Black

Material

Stainless Steel

Shape

Oval

Tip Diameter

4.000 in.

Tubing Diameter

3.000 in.

Muffler Count

2

Exit Position

Dual Rear

Tip Quantity

2

Tail Pipe Diameter

3.000 in.

Exhaust Type

Dual

Tip Material

Stainless Steel

Single or Dual

Dual

Tip Length

5.250 in.

Title

Flowmaster 817749 Axle-back System - 409S - Dual Rear Exit - American Thunder - Mod/Agg Sound

Brand

Flowmaster

Catalytic Converter Included

No

Catalytic Converter Quantity

0

Category

Exhaust

Clamping Type

Flat Band

Clamps Included

Yes

Drive

2WD

Emission Code

5

Exhaust Series

American Thunder

Exhaust Tip Color

Silver

Exhaust Tip Connection

Welded

Exhaust Tip Cut

Angled

Exhaust Tip Edge

Angle Cut

Exhaust Tip Finish

Polished

Exhaust Tip Intercooled

No

Exhaust Tip Length

5.25

Exhaust Tip Material

304 Stainless Steel

Exhaust Tip Quantity

2

Exhaust Tip Resonated

No

Exhaust Tip Shape

Round

Exhaust Tip Wall

Double Wall

Exit Style

Dual Out Rear

Finish

Natural

Gasket Or Seal Included

No

Grade Type

Performance

Hangers Included

Yes

Heat Shield Included

No

Inlet Diameter

2.50

Inlet Type

Clamp-On

Mount Type

Flanged

Mounting Bracket Included

No

Muffler (Left) Body Width

9.50

Muffler (Left) Type

Chambered

Muffler (Right) Type

Chambered

Muffler Body Length

13.25

Muffler Body Material

409 Stainless Steel

Muffler Body Shape

Oval

Muffler Finish

Black High-Temperature Paint Finish

Muffler Flanged Inlet

No

Muffler Flanged Outlet

No

Muffler Inlet Connection

Slip-Fit

Muffler Outlet Quantity

1

muffler part number

Kit Only

Muffler Quantity

2

Muffler Series

Super 44

Muffler Type

Chambered

Pipe Color

Black

Pipe Color

Silver

Pipe Material

409 Stainless Steel

Product Type

Exhaust System

Sound Level

Aggressive / Moderate

Spring Bolt Kit Included

No

Sub Category

Exhaust and Tail Pipes

Tail Pipe Quantity

2

Tail Pipe Quantity

Dual

Tail Pipe Tapered Outlet

No

Tip Logo

Embossed

Type

Axle-Back

Valve Included

No

Valve Type

Not Applicable

Warning

California Proposition 65

Very easy to look for parts.

Great prices. Great live customer service. Very pleased, will definitely order again.

Fast check out..

I was planning on ordering a race suit, had lot of questions. The support staff were extremely knowledgeable, courteous and had answers for all my questions. Placed the order online and product shipped the next day. Very happy with the customer service and the whole shopping process in general.

Autoplicity had the best price on an ARB locker. They shipped it quickly but was not able to give me the tracking number until after I had already received it.

good price---hope it ships quick---excited for my build

Autoplicity had the best pricing I could find. I ordered my items on Saturday and am having them delivered today (Tuesday). <br><br>Thanks again I will for sure do business here again.

Great price and shipping is more than reasonable.

Shipping was expensive for such a small part

The prices and selection are best. The cutomer service rep. did a good job in handling all my questions, and placed my order. I will be using Autoplicity for all my auto parts.

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