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Customer Service

  • Monday to Friday: 7am - 6pm CST
  • Saturday: 8am - 6pm CST
  • Sunday: Closed

Holiday Hours

  • Saturday Dec 24th: 8am - 6pm CST
  • Sunday Dec 25th: Closed
  • Saturday Dec 31st: 8am - 6pm CST
  • Sunday Jan 1st: Closed

Sales

  • Monday to Friday: 7am - 10pm CST
  • Saturday: 8am - 8pm CST
  • Sunday: 8am - 10pm CST

Returns

  • Monday to Friday: 7am - 6pm CST
  • Saturday: Closed
  • Sunday: Closed

Flowmaster Force II Exhaust System 817478

Product Information
List Price:
$929.09
Our Price:
$709.97
Factory Mail-In Rebate - $25-$75 Back on Flowmaster Exhausts! Download the rebate form.
Rating:
5 (2 reviews)
Part #:
817478
UPC:
700042023677
Type:
Cat-Back
Exit:
Dual Side or Rear Exit
Series:
Force II Series
Configuration:
Pipe: 2.5" Stainless Steel | 3" Stainless Tips w/Logo
Applications:
  • Includes Super 50 Series Muffler
  • Exhaust system will produce a moderate tone
Add to Cart
Ships Jan 19th - 23rd

Features

  • Single or dual exhausts available
  • Dyno proven performance gains
  • Mandrel bent tubing allows for better exhuast flow
  • Multiple Flowmaster Series Exhuast available - pick the one perfect for you
  • Complete exhaust system kits
  • Available in stainless steel, aluminum, and black-coated stainless steel
  • Made in the USA - Santa Rosa, CA

Flowmaster Exhaust System Series

  • American Thunder - Aggressive tone
  • Force II - Mild tone systems
  • Outlaw Series - Most agressive tone
  • dBX - Mild to moderate tone

Exhaust System Types

  • Cat Back Exhaust - Replaces the system from the catalytic converter to the rear bumper
  • Axle Back Exhaust - Replaces the system from the rear axle to the rear bumper
  • Header Back Exhaust - Replaces the system from the headers to the rear bumper
  • Turbo Back Exhaust - Replaces the system from the turbo to the rear bumper (diesel applications only)
  • Downpipe Back Exhaust - Replaces the system from the turbo downpipe to the rear bumper (diesel applications only)
  • DPF Back Exhaust - Replaces the system from the diesel particulate filter to the rear bumper (diesel applications only)

Exhaust Tone Examples:

Description

Let's face it you love your truck or muscle car and you want it to be noticed and running at its best. Flowmaster exhaust systems are one of the best out there with a great sound and power enhancing performance.

Everyone wants their exhaust to sound great, but first things first – it has to boost your engine's performance. Flowmaster exhaust systems are going to allow your engine to more easily emit exhaust fumes by optimizing the travel from engine to tip. Reduce back-pressure and you boost power. Boost power and you go faster – that's what Einstein said.

How does Flowmaster create such great sound from their exhaust kits you ask? The sound is created by a muffler that is manufactured for not just that great "Flowmaster Sound" but for optimal power and mileage. Taking the time to select each muffler, resonator, tube size for each vehicle and then dyno tested and proven Flowmaster really shows pride and care in their work. Each performance exhaust system is paired specifically with a muffler to create a mild, moderate or aggressive tone level.

You can choose from aluminized steel or upgrade to a polished stainless steel exhaust kit. Each truck and car exhaust system is mandrel bent for an even flow and exit. Flowmaster exhaust systems come complete with muffler(s), hangers, clamps and tip(s) for easier installation.

Customize your car, truck or SUV the way you want with applications offering a single or dual exit exhaust kit. You can even go further and select side exit, dual side exit, rear exit or dual rear exit for a true personalized style.

Flowmaster exhaust systems are easily recognizable with their unique sound that everybody will turn their head to look your way. Get yours today and not only get that great tone but also improve your power, torque and fun!

View Available Part Numbers For This Product Line

Fits

  • 2009-2010 Ford F150 5'7" Bed, SuperCrew, 4.6L V8, 5'7" Bed, SuperCrew, 4.6L V8
  • 2009-2010 Ford F150 5'7" Bed, SuperCrew, 5.4L V8, 5'7" Bed, SuperCrew, 5.4L V8
  • 2009-2010 Ford F150 6'7" Bed, Regular Cab, 4.6L V8, 6'7" Bed, Regular Cab, 4.6L V8
  • 2009-2010 Ford F150 6'7" Bed, SuperCab, 4.6L V8, 6'7" Bed, SuperCab, 4.6L V8
  • 2009-2010 Ford F150 6'7" Bed, SuperCab, 5.4L V8, 6'7" Bed, SuperCab, 5.4L V8
  • 2009-2010 Ford F150 6'7" Bed, SuperCrew, 4.6L V8, 6'7" Bed, SuperCrew, 4.6L V8
  • 2009-2010 Ford F150 6'7" Bed, SuperCrew, 5.4L V8, 6'7" Bed, SuperCrew, 5.4L V8
  • 2009-2010 Ford F150 8' Bed, Regular Cab, 4.6L V8, 8' Bed, Regular Cab, 4.6L V8
  • 2009-2010 Ford F150 8' Bed, Regular Cab, 5.4L V8, 8' Bed, Regular Cab, 5.4L V8
  • 2009-2010 Ford F150 8' Bed, SuperCab, 4.6L V8, 8' Bed, SuperCab, 4.6L V8
  • 2009-2010 Ford F150 8' Bed, SuperCab, 5.4L V8, 8' Bed, SuperCab, 5.4L V8
  • 2011-2014 Ford F150 5'7" Bed, SuperCrew, 5.0L V8, 5'7" Bed, SuperCrew, 5.0L V8
  • 2011-2014 Ford F150 6'7" Bed, Regular Cab, 5.0L V8, 6'7" Bed, Regular Cab, 5.0L V8
  • 2011-2014 Ford F150 6'7" Bed, SuperCab, 5.0L V8, 6'7" Bed, SuperCab, 5.0L V8
  • 2011-2014 Ford F150 6'7" Bed, SuperCrew, 5.0L V8, 6'7" Bed, SuperCrew, 5.0L V8
  • 2011-2014 Ford F150 8' Bed, Regular Cab, 5.0L V8, 8' Bed, Regular Cab, 5.0L V8
  • 2011-2014 Ford F150 8' Bed, SuperCab, 5.0L V8, 8' Bed, SuperCab, 5.0L V8

Installation

Flowmaster exhuast systems can be installed right at home, if you've got the right tools and equipment. All orders include installation instructions, and those are also available on our website. Welding may be required on some exhaust systems. For additional information please call our customer service team at 1-877-216-5446.

PDF Icon Flowmaster 817478 Installation Instructions

Lifetime Warranty SS / 3 Year Warranty Aluminum

Flowmaster is offering a lifetime limited warranty on their stainless steel exhaust systems and a 3 year limited warranty on the aluminized steel exhausts. The warranty protects you against manufacturing defects in material and workmanship. If you have any questions please call our customer service team at 1-877-216-5446.

Videos

Watch This Video2011 Dodge Dakota - Flowmaster Force II Cat-back Exhaust System - PN 817520
(01:20)
Watch This VideoHow to Install a Flowmaster Performance Exhaust System
(09:00)

Product Reviews Summary

Overall
5.0 
Appearance
2.5
Price / Value
2.5
Ease of Installation
2.5
Quality
2  Customer Reviews
5 Star
2   
4 Star
0   
3 Star
0   
2 Star
0   
1 Star
0   
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2009 FORD
Part #: FLM-817478 Posted on
Was this review helpful?
5.0
- 2009 Ford F150 (SAN ANTONIO, TX)
Appearance
Price / Value
Ease of Installation
They sound great. Instillation was easy and everything fit. The only problem was with the clamps! Had the same problem others has talked about. Clamps would not tighten enough to hold pipes secure. Used a impact wrench and bottomed out the threads and they still would not hold. After taking them off three times finally gave up trying to make them work went and bought regular muffler clamps. The ones they send are not cheep clamps but just will not compress the split on the end of the pipe. I'm 70 yo and installed them by myself on the ground (no lift) The hard part is trying to get the old tail pipe out without cutting it. If your on a lift no problem. I finally cut it to get it out. Other then the clamp problem a smooth and simple install. Watch the video of the installation before hand its on their site.
Part #: FLM-817478 Posted on
Was this review helpful?
5.0
- 2010 Ford F150 (Allentown, PA)
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