M4 Exhaust

Let customers speak for us

from 153 reviews

2024 Yamaha MT-09 M4 Exhaust

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

Jeremy Crouch

01/28/2025

M4 Exhaust All Black Full System MT-09/SXR900 2021 - 2023 YA6932

24 Z900 M4 Headers

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!

Hunter L.

01/28/2025

M4 Exhaust Universal Header Kit 2017-2024 Z900 KA9000

Vandemon for Kawasaki H2 Carbon

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!!!😃😃

Pierre Vallerand

01/18/2025

VANDEMON Polished Titanium Exhaust System Ninja H2 & H2R 2015-24 KAWAH2TICSPOLEXHD

Excellent Product

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.

Tayseer Zaid

01/03/2025

LEOVINCE LV Corsa Muffler - Black Edition KAWASAKI NINJA 400/500 2018 - 2025 15400BU 1811-4303

Excellent !!!! Exhaust !!!

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.

Michael D.

11/14/2024

M4 Exhaust Dual Carbon Tech 1 Slip Ons 2021 - 2024 Hayabusa SU8324

West Texas Heat!

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!

Jackie Williams

11/12/2024

DRAG SPECIALTIES OIL Engine Oil - 25W-60 - 1 U.S. quart 198920

Excellent product

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.

Michael D.

11/10/2024

T-rex racing suzuki hayabusa fender eliminator 2021- 2024

Empire slip on

Put this on my can am outlander 850 xmr sounds amazing deep tone love it!

Zach Thede

10/09/2024

Empire Industries Slip On Exhaust for 2012+ CAN-AM Outlander EMP-OUT-SLP

Vandemon 4-2-4 system for z900rs

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 !

Marc Upchurch

10/04/2024

Vandemon Retro Stainless Steel Exhaust System Z900RS Cafe Racer 2018-24 KAWAZ900RS424SSEXHA

Awesome Grips

I bought these for my 2022 iron 883, they look and feel great. Couldn’t be happier

Colton Cofel

09/18/2024

AVON Grips - Diamond Contour - Black DIA-65-ANO

Excellent experience

Quick and timely delivery. 🏍️
The windscreen installed without issue.

Anthony Williams

06/21/2024

Zero Gravity Windscreen - Dark Smoke 20-554-19

BUY HERE!!!

Excellent service!!!

steven Diefenbacher

06/09/2024

M4 Exhaust Tech 1 Carbon Fiber Slip On 2017-2024 GSXR1000 SU9144

Pro Circuit T6

Love the sound of the new pipe and how crisp the throttle is.

John Blankenship II

05/17/2024

PRO CIRCUIT T-6 Exhaust System - Stainless Steel KX 450 2024 0122445G 1820-2042

Great service and product exactly what I ordered

Bill was awesome. He helped me be certain the part I was ordering was what I wanted. Kept me up to date on everything. Seriously, a great choice on my end. Hopefully I don’t need to replace another muffler, but if I do, I’m coming back.

Jason Bruegemann

05/04/2024