US Orders Ship Free Over $49 📞305-859-1215
WSM Piston Assembly 50-520-5-645K
WSM Piston Assembly 50-520-5-70
WSM Piston Kit - .50mm - Yamaha 50-521-05PK
WSM Piston Kit - 1mm - Yamaha 50-521-07PK
WSM Piston Kit - Honda 250 - +.25 mm 50-229-04K
Exhaust fits perfectly, high quality and sounds amazing with my ZARD slip on
Sounds amazing. Installation is effortless. I like that it comes with a db killer for racetracks with noise regulation.
I ordered a black M4 Exhaust. Huge improvement over stock and sounds awesome. Bill was great to talk to and quick to reply when called or emailed. Thank you
Purchased from Bills and everything went great, Bill emailed me and a bunch of others to give us an update about when M4 would most likely ship out products and it was spot on. The exhaust fits great had a little trouble pairing it with an SC CRT Exhaust but that was a matching game and was nobodies fault. Overall great experience will do business again whenever I need more parts!
I just finished installing it!!!👍👍👍
it completely changes the look of the H2 Carbon!!!
I'm going to start the bike in May and I'll send you the video!!!😃😃
I was looking for this exhaust for a long time and finally found it at bills exhaust. The exhaust sounds good! Bills exhaust did a great job from the time I ordered it until I received. Highly recommended.
First of I want to thank Bill himself for the excellent customer service and the shipping was quick. I love this M4 Dual Slip on Exhaust for my Hayabusa they definitely sound amazing and easy to install. I definitely will be buying all my products I can get from Bill for sure and definitely my to go to place to buy parts.
I live out in West Texas halfway between Dallas and El Paso it gets hot out here.Oil works great good oil used it for years!
I needed to upgrade my stock fender and didn’t want to cut wires and this product was easy to install and you use the factory license plate light without cutting wires. The installation was very easy to me. The customer service is great and also the shipping was very fast which I was impressed and definitely ordering all my parts from Bills Exhaust.
Put this on my can am outlander 850 xmr sounds amazing deep tone love it!
Great system. Unfortunately there are no instructions whatsoever. I assumed that a clip went between the left passenger foot bracket and ended up breaking a $100 foot bracket on my motorcycle. Couldn’t believe it!!! How hard would have it been to just put a simple drawing in with the exhaust system to at least picture how it needed to be assembled. Hopefully JB Weld will glue this back together. :-(
On a brighter note, BILL’S EXHAUST STORE is absolutely awesome!!! Super customer service and Bill was really nice and kept me updated on my order the entire time. Highly recommend!!! Thank you Bill !
I bought these for my 2022 iron 883, they look and feel great. Couldn’t be happier
Quick and timely delivery. 🏍️
The windscreen installed without issue.
Excellent service!!!
Love the sound of the new pipe and how crisp the throttle is.
