The sound is amazing. The power increase is incredible and the quality is superior. Highly recommended product. Best in the market!!
M4 GP Series Slip-On Exhaust
- 60 Reviews
- 59 Questions
M4 Exhaust manufactures exhausts which add power and a more race-inspired sound to your bike as well as lowering the overall weight. Extra time on research and development ensures your exhaust has the ultimate in quality workmanship, ease of installation, and the best performance possible for your motorcycle. M4 Exhausts are available in both Standard / Race and GP Series mounting configurations.
- The GP Series mounts much lower and forward than stock, right near the right rider foot peg.
- This mount will give you that "GP" look and sound.
- Enjoy a deep, throaty tone from the lower RPM range through the mid-range - open it up and it screams MotoGP!
- The M4 GP Series Slip-On Exhaust has a built-in baffle, tuning the exhaust note for a crisp head turning sound.
- M4 has built a quality fitting exhaust that is a breeze to install; all mounting hardware and instructions included.
- The GP exhaust system will shed some weight over stock to give your sport bike improved power-to-weight ratio.
- M4 slip-ons are designed for use with the stock header assembly.
- Satin M4 aluminum name plate.
Note: All M4 systems are designed and intended for closed-course competition use ONLY.
Installed on '13 gsx-r 600. Did a cat delete as well. Sounds amazing. Better than I anticipated. I always ran yoshi pipes but this one is a winner.
I got these essentially because they were the cheapest i could find for my bike. I also did not want stupid loud pipes. The sound is good, nice deep sound and i can now hear my exhaust but it is not too loud. They look great. Though they dirty easily being black. The installation was the worst part of these pipis. While it is super easy to install. Took me maybe 20 minutes and i have cables i had to disconnect, the right side went on line a breeze. The left side the bracket is not positioned correctly, so in order to get it on without leaking i had to put the gasket inside the pipe them i can only slide the muffler into the pipe half way so i can clamp the pipe without it leaking and mount it to the rear mount. It was quite annoying,when i first put it on it leaked. I have a 15 z1000, maybe mine was a fluke but there was no way to fix this unless i cut off the bracket and rewelded it in the right spot, but i wasn't about to do that on $400 pipes. Other than that they are great
Received my M4 a day earlier then I expected. Installation was pretty easy only thing was i had to use a rubber mallet to kind of hit it on to the cat since it was a tight fit. Would have been easier if the end that slipped onto the cat would have been a hair bigger. The sounds is amazing. I love the low tone. What made it even better was taking the snap ring out and taking out the baffle aka doing the DB killer. Now it is louder and sounds better. Overall I would recommend this for sure. Make my 2013 Sfv650 gladius turn heads.
Couldn't be happier with this purchase. The installation took less than 10 minutes. The sounds is mean and deeper. I left the baffle in, and it's still plenty loud for me, and I hear as it gets worn in, it only gets louder and louder. The exhaust opens up the rear wheel and looks so clean. I would buy again with no hesitation. I feel no power difference (I did not install a power commander or tune anything differently) but sounds and looks 100x better.
For the price of this slip on its sounds and looks better than most exhaust. I took the baffle out and it makes it sound so much better and little louder. Remember "if they don't see you make sure they can hear you"
Excellent product, I had an M4 shorty exhaust on my 2007 GSXR600
for 5 years and not one problem. Bought my new bike 3 months ago and did a lot of research on slipons for my 2016 GSXR750 and kept coming back to M4. Ordered my exhaust and received it in 3 days, install was a breeze. Love the look and sound. Very happy with Motosport.com and this product.
Very good exgaust for the money. If your looking to add a little style to your bike, but dont want to go crazy...or broke, this exhaust is perfect. It will also make your bike louder so those cars can hear you coming buy. Super fast installation. Very pleased.
love the m4 great sound and is pretty loud to make every 1 around you look and be aware. the only bad thing was trying to take the baffle off it was pretty hard if you don't have the right tools and it's easy scratch if your not careful enough
I have an 07 Yamaha R6 no cat, I've been looking for a loud and deep exhaust well this was the perfect one! If you want an exhaust were cars can hear but won't wake up the neighbors this exhaust is perfect for you. Looks very clean and installation is as easy as tightening two bolts!
Bought this for a 2011 gsxr 600. It manages to give you a great sound without being too loud. Instalation took less than 20 minutes. Looks awesome with the stock heat shield. To take the dB killer out you will need a pair of strong snap ring pliers, adjustable ones probably cut it. Gives a great amount of braaaap for little money.
I'm highly satisfied with this pipe. It gave the bike a clean look by getting rid of the huge stock exhaust as well as a sound that I can only describe as a growl. Installation was fairly straightforward. However, removing the prechamber without removing the rear wheel was a bit tricky, but doable. Additionally, the top nut of the bracket was a tight squeeze to get to on my bike, but just be patient and you'll get it.
Also, sound clips of the exhaust does not do it justice. This thing is loud. It came with a Stage 1 baffle, which was deafening for me. So, I purchased a Stage 2 baffle directly from M4 (fantastic customer service). After installation, I now have the exact sound I was looking for (i.e., only loud when I want it to be).
Love it loud and I turn heads and feel safer cause people hear me coming
They sound phenomenal. Significantly louder, no video can justify the actual in person experience. Much deeper sound, when crusing, all you hear is exhaust, no more engine sound is heard. I did feel some slight low rpm power loss, i stalled the engine on the first ride. Mpg seemed to have benefited. Very simple install. What took the longest is taking off the stock exhaust gasket which you'll have to reuse. I broke one, so I had to reorder one. 30$ for oem gasket.
Whole ordering process wag great. Ordered over the phone and shipped to me in two days through UPS.
I have it installed on my 2016 ZX-6R. The installation was pretty straight forward, took about 45 minutes. The hardest part was trying to squeeze a wrench into the back side of the frame for the bracket installation. After the install my FI light turned on and was reading code 34 because the servo motor for the exhaust butterfly isn't functioning (I removed the cables). Going to order a servo buddy to get rid of the FI light.
As for the sound it was a lot louder than I was expecting but it has grown on me. The tone is deep at low RPM's and screams in the higher range.
This exhaust is great for the price!! Good quality and easy to install.. Not to mention it sounds great on my 2015 zx6r.
Looks good on my GSXR. Sounds amazing as well. Had to warm up the engine in order to slip on the M4 exhaust. With the bike being cold the exhaust would not slide in all the way. Shipping was excellent and shipped right away. Overall I would buy again and recommend this
-For most sport riders, you know the first thing majority bought is an aftermarket exhaust and in my opinion, this shorty is worth the money!
-Customer service is outstanding as they answered my shipping questions and got it here on time. (quick shipping!)
-A big difference from the stock exhaust when opened up at mid-range to full open. You really get to hear the potential of the motor.
-Easy to install, it took about 15 minutes from taking off the stock exhaust to completed install of the M4.
-It also uses the stock exhaust cover so you don't have to go buy one. (a plus!)
With one of the lower priced slip-on exhaust for late model sport bikes, this is definitely an option when considering swapping out your stock exhaust and I highly recommend this product!