Flowmaster American Thunder Dual Exhaust System; Side/Rear Exit (15-20 2.7L EcoBoost F-150)

10 customer reviews
SKU: 0015FF8C
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$995.95

In Stock
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Description

Signature Sound. Pound out a rhythm with the American Thunder Cat-Back Exhaust System built by AmericanMuscle. This Flowmaster American Thunder includes mandrel bent tubing to help improve the truck’s sound. Let them know you’re coming with a mellow, throaty exhaust roar.Peak Performance. The mandrel bent tubing combined with the Super 40 Series Delta Flow American Thunder muffler gives the system the best possible performance. The reduction of restrictions with this system gives the truck…

10 reviews for Flowmaster American Thunder Dual Exhaust System; Side/Rear Exit (15-20 2.7L EcoBoost F-150)

  1. ChristineH –

    Went on well, just be cognizant if you have a tow package, you may need to do some adjusting. Sound is really good, it is definitely a louder style exhaust. Overall very happy with it.

  2. hyawatha15 –

    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.

  3. Aubreyfsu76 –

    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…

  4. Omeanix –

    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.

  5. Reese333 –

    This system sounds awesome, really brings the true 5.0 sound out of the v8 f150. Installed my self. Took about 2 1/2 hours. Although it definitely would have went faster if I had a lift or jack stands. Getting the stock system out took a bit of time but I ended up jacking the body up slightly, tires still on the ground I found this made it way easier to get the stock system over the rear. I believe the site has it rated 3/5 on the wake the neighbors scale. If you’re looking for something not too loud this might not be right for you. Cold starts are quite loud until it’s warmed up. Really no drone till about 70-75 mph on the highway. Overall I’m very pleased with the American thunder system

  6. Chris39 –

    First exhaust system I’ve ever put on a vehicle. Was very easy to do, the only issue I really had was getting the old exhaust off without having to cut it. Love the deep rumble. Some drone when you get into fifth gear around 50-55 MPH with the 5.0 engine, but very manageable.

  7. Louder –

    I purchased mine about two weeks ago. It was so worth getting this system. It was easy to install and louder then I expected. I didn’t think it was that loud. I initially started it in the garage so I thought it was just because I was inside. NO, my wife told me she can hear me before I arrive in her sight, she works from home, and hear me from in the house. It adds power as well. Noticeably. She drove it so I could hear it myself. Very impressive.

  8. FSH –

    Sounds Great, can get a bit too loud at night in quiet areas.

  9. Taustin –

    Fit great. Sounds perfect. Had to swap out some clamps. Very happy overall

  10. Dontknow –

    Haven’t heard it from the outside, but it’s louder in the cab than I expected. Sounds good on start up from outside. The 2.75” clamp that was welded on the hanger was a treat to get over the 3” inlet pipe. Removal of the stock exhaust and install of this was not bad. System seems well made, shipping was fast, the delivery almost beat the confirmation email

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