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Flowmaster 817725 American Thunder Kit Flowmaster 817725 American Thunder Kit Flowmaster 817725 American Thunder Kit Flowmaster 817725 American Thunder Kit

Flowmaster 817725 American Thunder Kit

Flowmaster 817725 American Thunder Kit Flowmaster 817725 American Thunder Kit Flowmaster 817725 American Thunder Kit Flowmaster 817725 American Thunder Kit
$ 728.60

Score By Feature

Based on 71 ratings
Delivery
8.46
Satisfaction
8.26
Packaging
8.47
Customer service
8.02

OveReview Final Score

How Our Score Is Calculated

Product Description

Constructed out of stainless steel
Include both the rear exit as well as the side exit
Technology that is patented by Delta Flow
An example of bent mandrel

Questions & Answers

Do we lose our factory warranty if this is done?

As for me, I personally have not needed warranty service, nor have I faced any issues with my device. If you have a local dealer, I would check with them.

How else will this be installed? Do I need to make any further modifications or cuts?

Depending on the application, this may vary. It is a 2015 F150 4 DRI short bed 4x4, which is 5 doors. No modifications were needed to make it fit perfectly. The volume is slightly louder than I had hoped.

This kit will fit if you leave the stock resonator on a 2018 F150 2.0. Does 7L work?

To use the adapter, you would need one

Selected User Reviews For Flowmaster 817725 American Thunder Kit

During a Car show yesterday, I ran into a fellow with the exact same Ford F150 I own and he installed the They are not accurate - People who wrote it in a loud voice are not accurate
5/5

By a large margin, it is louder than stock, but it is not in any way as loud as the stock model. In my experience as an older gear head from the 1970s (Plymouth RoadRunner, Dodge Challenger, Ford Boss Mustang, etc, etc), this exhaust fits the bill since it wakes up the abysmal stock exhaust that Ford factories ships with their vehicles. In addition to being lighter, it can also be installed instead of the stock exhaust which can save some weight. Additionally, it gained some horsepower since it is combined with an SB CAI and improved gas mileage by about two or three miles per gallon. In the event that you're contemplating buying this exhaust over the prohibitively expensive Corsa or Borla systems, this may serve as a good investment. I met a guy Tuesday who has the same F150 that I do, and he installed a Borla system and side by side the Flowmaster one sounded better, more of a deep rumble and for HALF the price of the Borla one. I couldn't believe he was so mad at me I love it.

Ember PARKINSON
Ember PARKINSON
| Jul 07, 2021
The only thing I have to say about my car is that it's It has a V8 and weighs 150 pounds
5/5

To me, a loud set without being obnoxious was what I was looking for. This set struck me as a good choice after I did some research and found The cabin drone on the highway worries me a little because it's louder than stock. However, I do not think it's as loud as I was expecting (one more click of the radio should settle it down). Installing the new muffler was easy, the hardest part was taking the old one off since I do not have a lift, and the stock one was two pieces and MUCH heavier. I needed an extra pair of hands to manipulate It allows for a V8 sound without making enemies with all your neighbors. Customers are very happy with the purchase and would recommend the product to those interested in obtaining a true V8 sound.

Keira CONNOLLY
Keira CONNOLLY
| Sep 22, 2020
Fantastic! I'm blown away
5/5

No detail in the instructions, that's what I'll say. As long as the main points are clear. I did the refinishing of my garage floor by myself. To those who say you need to take it in or get another set of hands, I have to say that I did it by myself on my garage floor. For the same reason, I did not have to cut any of the original. As you align and firmly tighten each attachment, you might want to find a closer hanger for the driver's side section of the muffler. It would work better for aligning and securely securing everything before you mount the exhaust system. In the early days, it was like a bomb exploded when the kids went out of the house. When traveling downhill, the noise of the cab is minimal, but in lower gears in the city, it is quite I wanted that, so that was my goal. All three kids were giggling from ear to ear as the first driver exited the car. It's just too good to be true!.

Niko Banks
Niko Banks
| Mar 23, 2021
This is a good This is for my 2015 extended cab 6 and is in excellent condition
4/5

The bed is 5 feet wide and 5 feet long. I like everything about it. It fits well and the quality is good. I had no problems with the installation. As my cab configuration did not require cutting the extension pipe, I did not need to do so. The dimensions of the cut item are given to you if you have to cut it. My goal was only to tuck the tips under the bumper a little more by cutting the pipes that mount to them down a bit. Though it is not necessary, I feel it looks better this way. It is strongly recommended that you get some jacks to support the exhaust while it is being installed. There was an issue with the hangers on the rear most side, and I agree with others on this. My goal is to prevent the tips from bouncing around too much by making some additional ones. It is possible to have your own added to a muffler shop if you do not possess the means of doing it yourself. With this clamp, you get high quality clamps. The wheels haven't loosen up despite driving a lot of dirt roads since I installed them. It doesn't need to be tightened, but it must be properly tightened. Yes, I absolutely love the sound of it. At 70 miles per hour, we cruise down the highway The exhaust rumble is not excessive, but it does add a little bit to the road noise. I would not mind taking this car for a long drive. There are a few odd rpm ranges here and there where the exhaust makes a lot of noise. Depending on how people perceive this, this could be mistaken for a It was not a deal breaker to me, its to be expected of a mild exhaust.

I've gotten 17 MPG with this exhaust. There have been 10,000 miles in the last ten years. Although I have been getting on the site more often than usual since the install, the traffic has started to go up. There is no reason to be surprised if the number is After a certain amount of time passes, there will be a 1MPG increase. Overall I am extremely satisfied with the purchase and would purchase.

Emory Hull
Emory Hull
| Jun 10, 2021
The music sounds great on my iPhone This application was installed on May 5, 2018
5/5

The 0 supercrew is equipped with a 10 speed automatic transmission. It sounds great. I'm really happy with it. The band is loud but not in an obnoxious way. The installation of a lift took about three hours from start to finish. In the instructions, the right pipe is supposed to be connected to the muffler outlets first, but it was necessary to connect the left pipe first because the clearance around the spare tire and rear end is pretty tight. The clamps helped me hold everything in place while I tack welded all the This is a great kit, so I recommend it. I like how the 5 sounds with this.

Amaia Hinton
Amaia Hinton
| Jun 09, 2021
At highway speeds, the cab is too loud, and there is missing part
4/5

The exhaust note sounds good, but droning is heard a lot in the cab. Flowmaster DRONE BOX needed a Gibson muffler to replace the Flowmaster muffler I had (I still have not installed the Gibson muffler). There is also a missing 3" adapter pipe, and the hanger clamp bolt is far too short. I called Juiced Motorsports and they told me they would contact Flowmaster and have the adapter pipe, and another clamp sent, but I have not heard back from them. I appreciated the help of the staff at this company.

Franco Cunningham
Franco Cunningham
| Jan 19, 2021
I love how it sounds! In terms of sound, this is an exhaust system I would recommend for its affordable price
5/5

My product arrived a day early and I had no problem installing it. One person may find it a bit confusing. It would have been invaluable to have had a second pair of hands. Nevertheless, it is pretty straight forward to install. This exhaust fits my 2018 F-150 so well. The throaty sound it produces is great. The instructions were clear and the job was completed in less than two hours. It is powered by a 150 liter V8 engine.

Jayden Harmon
Jayden Harmon
| May 22, 2021
This product is worth the money and installs easily
5/5

In a nutshell, Installation was simple. I backed my truck up on a curb and only needed a socket set and a pipe wrench to get the stock exhaust off. I put the whole system together with just a socket set and one This is not difficult at all, and the clamps work well. I am a college student and I think this is not hard at all. One just needs to be mentally prepared. As well, this kit has a great sound and only gives off cab exhaust when you're really pressing Here's an update A set of evil energy exhaust clamps was purchased to secure the exhaust firmly It works much better and there is no shaking when it starts.

Jamal Key
Jamal Key
| Nov 13, 2020

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