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Flowmaster American Thunder Cat-Back Exhaust - Split Side/Rear Exit (15-17 2.7L EcoBoost)

Market Price $850.99 You Save 13% ($111.02)
Starting At

$739.97

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  • Item T527020A
  • MPN# 817725

Will this fit your F-150?

Features & Details

  • Aggressive Flowmaster 40-Series Delta Flow Sound
  • Durable 409 Stainless Steel Construction
  • 3 in. Inlet, Dual 2.5 in. Outlet Mandrel-Bent Tubing
  • 3.5 in. Polished Stainless Steel Tips
  • Simple Bolt-On Installation
  • Choice of Side or Rear Exit
  • Made in the USA
  • Fits 2015-2017 2.7L EcoBoost F-150s, Except for Regular Cabs with a 6.5 ft. Bed
Signature Flowmaster Sound. Give your 2.7L EcoBoost F-150 that unmistakable Flowmaster sound with the American Thunder Cat-Back Exhaust system from AmericanMuscle. The Flowmaster American Thunder Cat-Back Exhaust with its mandrel bent tubing will greatly improve your truck's exhaust flow for an increase in power. The included Super 40 Series Delta Flow Muffler will improve your exhaust's sound for a deep aggressive exhaust note.

Quality Construction. Proudly Made in the USA, this Flowmaster American Thunder Cat-Back Exhaust is constructed from durable 3.0 in. inlet and dual 2.5 in. outlet 16 gauge 409 stainless steel tubing for it's strength and corrosion resistant properties. This Cat-Back Exhaust features a Super 40 Series Delta Flow American Thunder muffler, that connects to a pair of 3.5 in. diameter polished stainless steel tips for great looks and sound. As an added bonus, the tips are embossed with the "Flowmaster" logo for true custom styling.

Bolt-On Installation. Flowmaster engineered this kit to be a direct upgrade replacement for your F-150 stock exhaust. All of the necessary hardware is included and installs easily with basic hand tools, with no extra modifications to your F-150. Depending on your cab and bed size, some minor cutting to the piping may be required.

Lifetime Warranty. Flowmaster is confident in the quality of their exhaust system by backing it with a Lifetime Limited Warranty. Some exclusions do apply, please see manufacturer's warranty for full details.

Application. This Flowmaster American Thunder Cat-Back Exhaust System is designed to fit the 2015 to 2017 2.7L EcoBoost F-150s with the following Cab and Bed sizes.
  • Regular Cab with a 8 ft. Bed
  • SuperCab with a 6.5 ft. Bed
  • SuperCab with a 8 ft. Bed
  • SuperCrew with a 5.5 ft. Bed
  • SuperCrew with a 6.5 ft. Bed

Fitment: 2015 2016 2017 Details

What's in the Box
  • (1) Inlet Pipe
  • (1) Adapter/Extension Pipe
  • (1) Muffler
  • (1) Right Tailpipe
  • (1) Left Tailpipe - Front
  • (1) Left Tailpipe - Rear
  • (2) Side Exit Pipes
  • (2) Rear Exit Pipes
  • (2) Stainless Tip
  • Hardware Kit
Installation Info
Will it fit my F-150?

Most Helpful Reviews

4/5
Sounds OK on a V6

I've heard many exhaust systems on a v6 engine and this is the best sounding one. Its a nice tone, but it does get a bit raspy at higher RPMs, (4k and higher). I've had it on my truck for almost a year ...

Read More
Helpful (1)

4/5
Flowmaster Exhaust

Really good product. Looks good on my F150. My only complaint is the drone at certain speeds. Can be a little loud inside the truck. Depending on your preference may be too loud...

Helpful (1)

Overall Rating 4 out of 5 stars
Read All 3 Reviews

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Customer Reviews (3) Write a Review

Overall Rating 4.0

out of 5 stars

Installation Time:Weekend

Installation Cost:0-$100

  • Loudness / Volume 4.5 4.5
  • Exhaust Note 4.5 4.5
  • Fit & Finish 3.5 3.5
  • Bang For Your Buck 3.5 3.5



  • 4/5

    September 02, 2016

    Sounds OK on a V6

    I've heard many exhaust systems on a v6 engine and this is the best sounding one. Its a nice tone, but it does get a bit raspy at higher RPMs, (4k and higher). I've had it on my truck for almost a year now and the sound has stayed consistent. I gave it a 4 out of 5 because the tips are already gathering rust from their first winter.

    hyawatha15

    Year: 2015 Submodel: 2.7L V6 EcoBoost XL

    Helpful (1)

  • 4/5

    Installation Time: Shop Install

    Installation Cost: 0-$100

    June 30, 2016

    Flowmaster Exhaust

    Really good product. Looks good on my F150. My only complaint is the drone at certain speeds. Can be a little loud inside the truck. Depending on your preference may be too loud...

    Aubreyfsu76

    Year: 2015 Submodel: XLT

    Helpful (1)

  • 4/5

    Installation Time: Afternoon

    May 11, 2016

    Great Product, some minor issues

    First issue is the band clamps for the 2.5 inch side of the exhaust were junk, they did not tighten down enough to secure the pipes in place. Had to do some modifications to get them to kind of work. The tail pipe tips would not stay in place, had to get some clamps from the local auto parts store to get them secure. Next is the highway drone of these around 70MPH, its pretty bad, considering reinstalling the resonator to see if that helps. The quality of the system as whole is great minus the clamps, I do love the option this kit gives you to either side exit or straight out the back. I love the sound below 70MPH so if your just driving around town the sound is awesome, any long highway trips the echoing drone can be a bit much.

    Omeanix

    Year: 2016 Submodel: XLT

    Helpful (1)

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