Yoshimura R-77 Exhaust System Kawasaki Ninja 300 2013-2014
Very good choice for full exhaust
First, the good:
This full exhaust looks great (I got the carbon version), sounds amazing, and performs. On the ninja 300 you can expect a gain of about 5hp (with a flash or power commander) at the rear wheel. The sound is throaty down low, and screams up high in the rpm range. It was too loud for me without the baffle, but with it installed (it comes with the exhaust), it's the prefect blend of loudness and subtlety. Install was easy if you're at all mechanically inclined (much easier than the power commander). IMO this is the best looking exhaust available for the 300, besides the discontinued Leo Vince GP Corsa.
Now for the not-so-good:
The finish on the endcap is VERY fragile. If you leave it exposed to the sun, it will start to yellow within a month or two (even though the body of the muffler remains brand new looking). I recommend covering your bike (or at least the muffler) during prolonged parking in the sun. Also, I was expecting better quality welds for such an expensive product, however it does seem plenty sturdy and I haven't had any problems.
Overall, this is a great exhaust system, and probably the best option if your goal is to use in conjunction with a piggyback fuel management system for gains in hp. If the endcap had the same quality finish as the muffler body, OR if it were about $100 cheaper, I'd give it 5 stars. I expected slightly better quality for the price, but I don't regret my decision to buy it and I would recommend it to a friend in a heartbeat.
October 20, 2014
it was kind of a pain to put it on solo but it paid off. the new system is much louder then the stock setup and a lot more kick in the lower ranger.
October 11, 2014
A must buy!
Installed the full Yoshi system with carbon fiber can on my Ninja 300...it sounds A-M-A-Z-I-N-G. I paired this exhaust up with a PowerCommanderV, and the bike really moves. There is a huge difference in mid-top end acceleration. The exhaust system weighs half, if not a third of the stock exhausts wight on a ninja 300. Great exhaust system, really happy with my purchase!
September 2, 2014
I just love the looks and the sound of this exhaust! Add it to a filter and ecu tune and you can feel a power difference. One of the best upgrades I've done.
June 25, 2014
I was not surprised that the Yoshi system fit great but it sounds even better. My little Ninja 300 sounds more like a 750. Really great sound and I could notice a change in performance as well. I would recommend this system to anyone with a Ninja 300. Quality cannot be beat!
May 5, 2014
An absolute must have for the Ninja 300!!
Install was actually a breeze. Looks awesome, sounds like a whole different animal. Installed with a Power Commander Five and it makes a really big difference. Throttle response and increase in the power bands very noticeable.
April 17, 2014
Great price for a full exhaust!
I bought this exhaust because the stock exhaust on the ninja 300 is too quite that it's actually dangerous to lane split. The yoshimura full exhaust makes the bike sound so sexy. It's only a 300 but it sounds pretty mean. If you're considering this exhaust, you will not be disappointed. In terms of performance, you feel like you're stressing the engine a little less when you hit those high revs. When you consider the other options available for the ninja300 how can you not choose this beautiful exhaust, it compliments the the bike perfectly.
April 14, 2014
This exhaust system is great especially the stainless! Install took sometime to get everything fitted correctly but there were no major issues. The exhaust sounds incredible and looks great. Quality product that I would recommend to anyone.
March 17, 2014