Thisis the best slipon i have owned so far. It gives the bike a better sound than the factory muffler without making it too loud (noise ordanance). It improves the look of my by by using the factory heatsheild and lets me get rid of those ugly rear pegs (solo rider). This took me lest than 5 minutes to put on, the longest part was figuring out where to put the M4 decal. I did not feel any power change but the look is good enought for me!
M4 GP Series Slip-On Exhaust
Write your review and you'll automatically be entered in our monthly drawing. Include an image or video to DOUBLE your chances to win!Write Your Review
I knew I wanted a more noticeable sound to my bike. Something that cagers could hear but wouldn't make me deaf. Not a fan of ear plugs. For the price and quality, this is the best. Much better than stock.
Easy install. Watch an online video how to properly install the exhaust.
Looks great and sounds amazing!
Sounds good, looks good, and absolutely screams at high rpms!
for only 304 dollars, sounds awesome at an idle with a deeper fuller sound. Looks pretty sweet on the bike, easy to install. I only have a 600 so only did a slip on for looks and sounds didn't find it necessary to do a full exhaust on a 600. If I wanted a faster bike I'll upgrade to a 750/1000
Sounds amazing!! Fitment was perfect and it looks great....I'd put this exhaust on any bike I get. However it sounds mean on my S1000rr....cheap too
This slip on sounds great with a deep, low rumble and it really screams in the higher RPMs. Not much for performance gains as it's only a slip on
Good slip on sounds great.
My package came home fast and the exhaust was very easy to install
I have no complaints about the m4 gp. Just wish the baffle would come out easier or a baffle removal tool was included. Changed from two brothers because it was stupidly loud and annoying.
I replaced my TaylorMade exhaust with a M4. Call me crazy but I didn't like the low base tone of the Taylor on my 2016 Honda CBR1000RR SP Repsol edition. M4 has the particular sound I am looking for in a race bike. Will not break the bank account. I had a Yoshimura on my last bike but went with M4 this time because it has an ever so slight edge in decibel. M4's are simply the loudest pipes out there guaranteed to make heads turn in jealousy and chuckle off those neighbors you can't stand.
I purchased this M4 for my 2016 GSX-R750 and it not only looks better, but sounds great! It has a perfect growl and lower tone than some slip on's. I kept the baffle in mine and it was plenty loud, but you can also remove that very easy if super loud is your thing. I had one of these on my 09' GSX-R750 too, so obviously happy with M4 and Motosport.com
These were very easy to install, and the look and sound were just what I was hoping for. I do not regret one bit buying these, because they make the riding experience a lot more enjoyable. Some other reviews had me worried a bit that they might be too loud, but that is not the case.
The sound is amazing. The power increase is incredible and the quality is superior. Highly recommended product. Best in the market!!
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.