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    Below is what customers are saying about the Tone-Flex System and the great customer service they received from the American Custom team.

  • I ordered my "less than perfect" pipes and found the flaw. I put them on and the flaw "disappeared". I fired up the bike and my concerns about how they actually sounded (relative to the sound on the web site) also disappeared. The sound is awesome. They arrived Wednesday afternoon and were down on Beale Street for bike night that evening. My riding partner (who had recently purchased the same type pipes from a competitor) spent the evening saying "man I wish I had found that site when I bought mine", They sound better and cost less. Great product, great service, great price. Congratulations American Custom. Your name is being spread!

    Cordova, TN

  • Got my pipes Thursday. Black Slash Down Bombers. From the time I opened the box until they were on the bike took about 20 minutes.

    I started the bike, and at the moment my Harley purchase was complete. Great sound, it is like the slip-ons are screaming "POWER"

    The wife came home a few minutes later so we took a quick ride to run to the store. Every time I gave it gas I could hear her in the back laughing. At that point I knew we had gotten the right pipes from the right people for the bike.

    Thank you for making such a great product. I will be looking at the Power Flex header with my refund on my old stock slip-ons....


  • I received my mufflers and installed them. Man was I surprised. My Electraglide finally had the true old Harley sound that I'd been looking for. If you want the real Harley sound, this is the way to go. No $600.00 system will beat American Custom's design. Also the quality and workmanship is fantastic. They have a new customer for life. Try them, you will not be disappointed.


  • I received my mufflers back for my 2007 HD Classic Ultra Glide. When American Custom says you get them back in 3 days folks.......they mean 3 days. I couldn't believe it. My husband had them on the bike by the time I got home from work. I couldn't wait to start the bike. THE MUFFLERS SOUND SO MUCH BETTER THEN THE SAMPLES you hear online. I am soooo happy with the results! I took the bike out right away. I couldn't help but smile the entire time I was on the bike. Thank you soooo much. I will definitely be telling everyone about you!

    Chicago, IL

  • To all you guys at american custom....

    I have to tell you...the work you did on my street glide mufflers is nothing short of amazing. The best way to explain it's kinda like when your walking down main street at Daytona Bike Week, and ya can hear that engine running from someone who just started their machine...and all you can think to yourself is...that's what I wish my bike sounded like. The growl when you tweek the throttle, the low rumble when it sits idling... not to mention the added feel of power behind the throttle. Nothing less than amazing in every respect...

    Dingmans Ferry, PA

  • I installed your headers (competitors were in the $450 to $650 price range) on my 2010 Harley Ultra (FLHTCU). I then installed the appropriate map in the PC V and all I can say is thank you. The heat from the catalytic converter is gone, the sound is better, the bike pulls better, and my fuel economy went up 4 MPG. Nice to know American ingenuity is still out there!


  • The boxes arrived and I used almost the full 30 days before returning the cores due to waiting for weather to become bearable to ride in so I could fully test them out. The pipes were easy to install and sound great. They are loud enough to get attention but not obnoxious to those around you. Being in Law Enforcement I still want to set a good example and be safe to boot. The power increase is nice and no additional changes were needed. Thanks for your help and the folks that took my order. They were very friendly and knowledgeable making it a smooth easy process. I would recommend your company and products to anyone. Thanks a bunch.

    Sparks, NV

  • I received the pipes this morning around 9:45 and had them installed by 11am. They sound great and if it was not for the snow on the roads I would be out on it now. I have steered a lot of people to your web site and they were waiting to hear these pipes as bad as I was. I even left some noisey phone messages to a few. Thanks

    Ontario, Canada

  • I got my new slip-ons the other day for my 2010 FXSTC. Easy install, loved them from the fist minute I opened the box. Started the bike and my wife said, "Loud, ain't they?" So I installed the mid rumble baffles I ordered too, much better...for her anyway. Absolutely love the fact it takes about 2 minutes to put the baffles in or take them out if riding alone. I've been a jet engine mechanic for over 30 years. I know noise, and these things rock!!

    Your customer service is second to none. I appreciate the phone calls and the advice you gave me. You have a very satisfied customer.

    Thanks again.

  • "Incredible" is the only word I can use to explain the sound from my American Custom Exhaust. I am thoroughly impressed with everything from the fast shipping time to the phenomenal quality of the product. I've had several Harleys and have owned Vance & Hines, Rineharts and Screamin' Eagle pipes and I can honestly say that none sound anywhere close to the clean, deep rumble of the American Custom (exhaust). Thanks very much to everyone at American Custom Exhaust!

    Gulf Breeze, FL

  • Thank you for building such a wonderful product. You all have done a marvelous job with the slip-ons for my 2009 Street Glide HD bike. As you said on the phone and on your website, there's nothing to it when changing the mufflers. It took me all of about 30 minutes with my wife sitting on the bike to keep it up right while I changed the mufflers. Once I changed them out, I slipped the OEM mufflers into the shipping box, went down to the UPS store, and sent them back to you.

    I also wish to let you know that I have shown these pipes off to some of my friends who have HD's. They all requested your website address. They're considering purchasing these slip on mufflers for their bikes.

    Bonnie & John

  • To everyone at American Custom

    I got my pipes today for my new Sportster 48 (After trying almost every muffler out there on my past Harleys). Finally a product that does what the company says it does. These pipes sound so good. The best i've heard. It's the sound i've been looking for.

    I almost feel guilty sending my stock pipes in for the $89(core refund). Now my wife wants them for her Fat Boy, and I will be a customer for life. Thanks again.

    Muskegon, MI

  • I would like to thank the crew at American Custom. I have a 2005 Dyna Wide Glide with 13,400 miles on it. I bought it in March of 2010 with only 68 miles. I looked all over for after market exhaust and found no exhaust sound that I liked. I went online and found American Custom. I played the live sound over and over and over again. I never thought that the sound of a Harley Davidson would get my blood going but wow! I like the American Custom exhaust because: one- the chrome is awesome, the fit is the same. Oh, did I say the sound is Awesome! Thanks again, I am very pleased to have purchased my mufflers from American Custom.


  • I received the replacement American Custom Mufflers for my 2009 Road King Classic. I'm very pleased with your product. I like the sound without the baffle best, but also like the versatility these mufflers offer, enabling me to install the medium baffles to tone down the mufflers if I want.

    You guys did everything you promised and I am very pleased with your product, customer service and the sound of the mufflers. If I can ever be of assistance, or if you need an endorsement, don't hesitate to ask. Any potential customer of yours in my area who would like to hear your product installed on a motorcycle is welcome to listen to mine.


  • I just thought I'd send you an email about the pipes you did for my 2007 Softail Heritage. I just got done putting on the pipes, two new tires, an Amsoil free flow air cleaner, and the Nightrider XIED's on the two O2 sensors that will richen the bike up.

    The exhaust sounds great with and without the mid-range baffles. It's not an offending sound. A friend of mine has drag pipes on an older HD and they offend.

    I'm going to run the bike with and without the midrange baffles and see if I can find any difference in performance - mainly regarding fuel MPG, and engine pinging (which the XIED's are supposed to stop). Just the pipes alone should reduce heat.

    I'll recommend AC to other bikers. I'm sure I will be asked: "Why do your stock pipes sound so smooth? Where can I get that great sound?"

    Harris, MO

  • My Mufflers arrived as promised. My current Scoot is a 2011 RoadGlide Custom with the 103ci. Install was (well let's face it, a matter of six bolts on & off). The system immediately compensated for the change and running with the "deep growl" I could sense a smoother acceleration in all gears but particularly 3rd and 4th.

    Very pleased with the performance as well as the tone and volume. Sorry I can't remember the guys name I spoke to on the phone when I ordered but he was quite helpful and I would like to simply say thank you for an American Product, sent as promised, and every bit worth the price and in today's world, advertized. You folks just picked up another salesman who is more than happy to refer folks in your direction. Been on two wheels since 1971 and some of the changes over time have been depressing. This is an uplift to the spirit I recall.

    Warm Regards

    Jimmy K
    Houston, TX