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Yoshimura Alpha Works Race Exhaust System Kawasaki Z650 / Ninja 650 2017-2018

Item: P372024

This exhaust is the next evolution in the Yosh line. It features a redesigned tri-oval muffler with a signature Works finish on the headers and pipes. Read More

$674.10 - $737.10
$749.00 - $819.00
Save $74.90 (10%)
Price depends on product options. Make a selection to update price.

This product is vehicle specific. Please to ensure fitment.

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Product Details

This product is legal in California only for racing vehicles which may never be used, registered or licensed for use upon a highway.

Resources

Yoshimura Alpha Works Race Exhaust System Kawasaki Z650 / Ninja 650

The Alpha Works Race Exhaust System features Yoshimura's Works finished headers and midpipe that take on a unique coloring after going through a heat cycle. This special finish treatment increases fatigue strength, scratch resistance and just looks cool.

The Alpha Race series is the result of Yoshimura's investments in technology, combining decades of hands on race experience with the latest in digital design capabilities. The unique Tri-Oval design of the muffler is especially striking from the rear, where the large-diameter carbon fiber end cap and well-integrated, draw-formed, slash-cut outlet can clearly be seen. But there's more to the Tri-Oval design than its cutting-edge appearance, along with improved lean-angle ground clearance, this shape allows better use of internal volume to produce the deep, distinct exhaust note Yoshimura is known for.

Features:

  • More aggressive sound profile
  • Beautiful shape resulting from Yoshimura's Tri-Oval design heritage
  • Unrivaled fit and finish thanks to improved production tolerances
  • Optimized for maximum airflow and ground clearance
  • Designed for durability and ease of service
  • Contemporary satin/matte finish
  • 8.7 lbs lighter than stock
  • Stainless steel headers and midpipe
Made in the USA
Product Style RevZilla Item # MFR. Product # Availability
Product Style Stainless Steel/Carbon Fiber RevZilla Item #1205833 MFR. Product #14651AM520 AvailabilityIn Stock: Ships within 24 hours
Product Style Carbon Fiber/Carbon Fiber RevZilla Item #1205834 MFR. Product #14651AM220 AvailabilityIn Stock: Ships within 24 hours

This product is vehicle specific. Please to ensure fitment.

This Product Fits
Kawasaki
Ninja 650 2017, 2018
Ninja 650 ABS 2017, 2018
Z650 2017, 2018

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Product Description
Part Numbers
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Shipping & Returns

Reviews & Questions

5.0 / 5.0
13 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
13
0
0
0
0
Bang For The Buck
4.5 / 5
Features
4.9 / 5
Style
4.9 / 5
Ease Of Install
4.7 / 5
Fit & Finish
5.0 / 5
Durability
5.0 / 5
Bang For The Buck
5 / 5
Features
5 / 5
Style
5 / 5
Ease Of Install
4 / 5
Fit & Finish
5 / 5
Durability
5 / 5
Perfect for Ninja 650R 2017.
I received it on time and the packaging was good. It was a hassle to remove the foam thing though. Installing this only took 15minutes but removing the stock one is a mess. I didn't have necessary wrenches which made the installation very difficult. Finally I installed it and it was LOUD. It was 103db-110db when I measured it. I thought it was annoying and installed the “Sound Insert” (DB killer) that came with the exhaust. The insert reduced the sound by 10db as it claims and it now sounds as loud as a stock Harley. There is some mild performance gain without any fuel remapping and to my surprise, the mileage is good too (50mpg city).
July 11, 2017
Bang For The Buck
4 / 5
Features
5 / 5
Style
5 / 5
Ease Of Install
5 / 5
Fit & Finish
5 / 5
Durability
5 / 5
Dang!
Just as I said in the title! Dang! I did a lot of shopping around before ending up purchasing this exhaust; I had so many questions as to whether or not it would require fuel re-mapping, sound and perform well, or even be easily installed. I must say, I am highly satisfied with this exhaust system.
Here are my biggest questions answered!:

Fuel re-map: Not required. Check out some youtube videos on the dyno test on this bad boy and you will see that very little tuning is required after installation. As soon as you get back on the bike you will feel a difference, and know that no re-mapping is needed!

Sound: Wow. After hearing the youtube videos and then hearing it in person, I can say that no video or audio recorder can do this exhaust justice. Just beware, without the DB Killer in, you will need hearing protection!

Installation: Very self intuitive, especially with the included instructions. You should be able to have the old exhaust dropped and this one in within the hour.

And finally,

Style: If you are looking for a sharp, clean edged exhaust then this system is for you! I always disliked how some systems poked out the side and back of a bike too far, but this one is neatly and cleanly tucked into the old ones spot. And the pipes get a nice golden color after a few rides.
June 13, 2017
Bang For The Buck
4 / 5
Features
5 / 5
Style
5 / 5
Ease Of Install
5 / 5
Fit & Finish
5 / 5
Durability
5 / 5
Install was straight forward and easy. Fits, and looks great. Definitely adds a better, 'tougher' sound to the bike. Big change from the factory exhaust and a lot lighter. Only real draw back is the price. I really like the exhaust fit, finish and sound but it's still a hard pill to swallow considering how little there really is for a Ninja exhaust. That being said, I would still highly recommend it
September 4, 2017
Purchased
1 year ago
Bang For The Buck
5 / 5
Features
5 / 5
Style
5 / 5
Ease Of Install
5 / 5
Fit & Finish
5 / 5
Durability
5 / 5
2017Kawasaki Z650
PERFECT! Ordered the Yosh Alpha one full system for my wife's 2017 Z650 first then mine, and it is awesome (yes we have 2 of them). Easy install. Awesome looks and great added sound compared to the stock can. You can definitely feel additional power across the revs. A few notes to add: Her bike has the sound insert installed (AKA DB killer) and the bike seems to have just a bit snappier throttle response but on deceleration pulls very hard during engine braking. Mine does not have it installed and is more relaxed on deceleration. If you are going to install the sound insert do it prior to mounting the slip-on. I did not do it prior on my wife's bike and had to tape the installation screw to the allen wrench so it would not fall off inside the interior of the canister wall. The system comes wrapped in 2 plastic bags. One for the header and one for the slip-on. Yosh uses spray foam to secure the contents inside the box they come in. While it is a bit messy to get them out of the box, you can be rest assured yours will arrive in the condition you expected!
March 11, 2018
Bang For The Buck
4 / 5
Features
5 / 5
Style
5 / 5
Ease Of Install
5 / 5
Fit & Finish
5 / 5
Durability
5 / 5
Perfect sound!
I have to agree with other review. Exhaust sounds and fits amazing. Installation only took around an hour and most of that was letting old one cool off. I purchased full carbon and recommend to anyone looking for a great sounding exhaust system.
May 25, 2017
Bang For The Buck
5 / 5
Features
5 / 5
Style
5 / 5
Ease Of Install
5 / 5
Fit & Finish
5 / 5
Durability
5 / 5
Worth every penny!
If you’re on the fence about buying a new exhaust, buy it! Bought for a 2018 ninja 650, installed in about an hour without even having to take the fairings off. There is enough room to get it in under from the bottom. Worth every penny, sounds great with the dB killer in, it’s a bit too loud without it.
May 21, 2018
Bang For The Buck
4 / 5
Features
4 / 5
Style
5 / 5
Ease Of Install
5 / 5
Fit & Finish
5 / 5
Durability
5 / 5
Sexy Sound and Performance
This system is extremely easy to install. It's more work to uninstall the stock muffler than to bolt this on.

The sound this muffler provides is gorgeous, elegant, grade-A ear porn. The sound in youtube videos is nothing like hearing it in person. A welcome surprise is that upon calling yoshi, the improved 6.5% hp and 3.1% torque numbers they stated were from bolting on this system bare with no fuel mapping (power commander) changes. This was important for me because the common wisdom is that "if you install a full system, you must re-map". I didn't fancy dropping even more on a fuel map system quite yet and am glad I can wait until I feel the need for it.

Lastly I was curious if the improved performance would be "felt". I can definitively say the increase in power is noticeable. It won't your bike into a FTL drive but it certainly gets a better punch and the growl it provides while doing so is icing on the cake.

Overall I'm very happy with the yoshi alpha works system and I know if I ever lust after more power I can bolt on a fuel map system and play with the performance more. If you've been on the fence or have been considering slip on vs full (works system) get the full. The added performance is worth the extra $$
May 22, 2017
Bang For The Buck
5 / 5
Features
5 / 5
Style
5 / 5
Ease Of Install
3 / 5
Fit & Finish
5 / 5
Durability
5 / 5
Amazing!
One of the best purchases I have ever made. It looks great and sounds WAY better than any video can give it justice.

As for the installation, it wasn't to hard, the instructions aren't too much help except for the two pictures in it. But you can always find a video online somewhere for guide.

All in all, recommend to anyone wanting to change up their z650!!!
Noticeable difference as soon as you start your ride !
January 20, 2018
Purchased
7 months ago
Bang For The Buck
5 / 5
Features
5 / 5
Style
5 / 5
Ease Of Install
5 / 5
Fit & Finish
5 / 5
Durability
5 / 5
Bang for the Buck literally...
I've wanted this system for the longest time. When it came around to having it in stock and for the right price I was able to finally grab it back towards end of april.

Definitely an easy install even if your a noobie
No audio video can do this exhaust justice
The deep rumble is as if it was a subie..

Love the sound Love the pipe yoshi killed it
May 28, 2018
Purchased
3 months ago
Bang For The Buck
5 / 5
Features
5 / 5
Style
5 / 5
Ease Of Install
4 / 5
Fit & Finish
5 / 5
Durability
5 / 5
Beast
Installed this on my 2017 Z650... Sounds like a freak'n beast. Wasn't all that thrilled with the stock exhaust on the Z and this was a much needed upgrade. Taking the stock exhaust off took longer than the actual install of the Yoshi pipe.
April 5, 2018
Purchased
6 months ago
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 9 questions Browse 9 questions and 9 answers
Why did you choose this?
RevZilla Store
the sound of this exhaust is amazing on my bike. It gave me the sound i love
Henry C on Oct 27, 2017
the sound of this exhaust is amazing on my bike. It gave me the sound i love
Henry C on Oct 27, 2017
Does it come with a silencer?
A shopper on Jun 5, 2018
BEST ANSWER: Yes it does come with one but I didn't care to install it, sounds amazing without the silencer I can't tell you what it sounds like with one, highly recommend this exhaust I love it every day i ride it.
This is a full exhaust system no need to weld on?
David W on Sep 30, 2017
BEST ANSWER: It is a bolt on system.
Will this require a new fuel mapping ?
Benny C on Sep 27, 2017
BEST ANSWER: No, remapping is not require. It is just plug and play. The performance does get better with remapping, but it is not required.
Is this system suitable for versys650 2017?
A C on Apr 22, 2017
BEST ANSWER: I would say so. I am really happy that I put it on my 2017 Ninja 650.
Is this exhaust California legal?
A shopper on Jun 12, 2018
In NZL we get a LAMS version of z650 which is for learners. Is this exhaust suited considering the hp is restricted?
A shopper on Jan 28, 2018
Does this exhaust need a tune or power commander? Since install bike is running slot hotter good amount of back fires also.
David W on Oct 4, 2017
Is this system suitable for versys650 2017?
A C on Apr 22, 2017
12 Customer Reviews
12 5/5
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8 Questions & 6 Answers
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