K-FACTORY Motorcycle Full Exhaust System Reviews

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K-FACTORY

16 Apr 2024

CLR-R+(Plus) Full Exhaust System

Fits: KAWASAKI Z900RS CAFE, KAWASAKI Z900RS

Japanese Webike user

4/5

light

[How is it used?
After installation, the car traveled about 200 km.

Was the installation difficult?
It is not so difficult to install except for the Flange, which is a type of two-piece flange, so it is difficult to install unless you get under the motorcycle.

How was your experience with it?
The OEM one is quieter, both idling and running, but the OEM one is louder. Personally, I was satisfied with the quietness, as it was just right for me. The sound quality is not as harsh as the OEM, but low and smooth.
Lightness is somewhat felt when pushing and pulling.

[Was there anything that disappointed you?
There are too many springs to install, but since spring hooks (devices) are not included, it is better to prepare them.

[Others]
Point or hang for installation...nothing special. If you dare to say so, there is no need to twist the O2 Sensor when installing it. If you install the O2 Sensor lightly before fixing the middle Pipe and turn the Pipe side around, you don't have to worry about the O2 Sensor wiring twist.
Availability and clarity of Instruction Manual - I can understand without it.
Items to buy together...Gasket is a good thing to have. The only other thing I need is heat resistant grease.

【Review】
Personally, I don't like the length of the exhaust end, the degree of raising, and the color (I prefer shorter, lower, and Polished Titaniumium), but I am very satisfied with the lightness, the Hand Bent-like curve of the exhaust pipe, and the high quality sound. View detail

K-FACTORY

23 Dec 2023

CLR (Titanium Exhaust Pipe Single Item)

Fits: KAWASAKI Z900RS, KAWASAKI Z900RS, KAWASAKI Z900RS CAFE, KAWASAKI Z900RS CAFE

Japanese Webike user

2/5

Disappointed with the roughness of the finish.

[How is it used?

I switched my car to a Z900RS and the NORMAL sound was not bad, but
Purchased because the sound quality was a little different from my taste and I wanted to change the appearance and reduce the weight.

The following impressions are in comparison with the SC-PROJECT full titanium exhaust that was installed on the previous Z900 (unmarked).
So it is very dry.

Was the one you received as per Image?

The finish was worse than expected.
All of the pipes have scratches from the manufacturing process, and all of the exhaust pipes have weld marks.
It looks as if it is not a Pipe, but a plate material that has been rounded and welded.
The surface of the bending part is decorated with wrinkles.
Roughened surface like sharkskin can be seen throughout the entire surface (especially on Tail Pipe). (Tail Pipe is especially bad.)
Material:I also felt it was surprisingly heavy for Titanium.

The SC-PROJECT product was surprisingly light, with excellent finish and precision.
I assume the lightness is due to the use of thinner-walled Pipe than this product.
Naturally, the thinner the material, the higher the technology required for bending and welding.

Was the installation difficult?

The joint with the Tail Pipe also went in without any problem when combined with the same K-fac Bullet Silencer.
Aluminum's split flange seems easy to install, but in reality, it is not easy to install on the Stud.
It is difficult to do because of the "Rose" effect.
The installation of the assembly was easy, with no particular misalignment.
Clearance with the lower part of the Engine is quite low, making it difficult to set an extreme Pushing Up Style.
The Bracket that fixes the Wiring of the OEM's Lambda sensor was removed because it hit the assembly area.
The Lambda sensor mounting part is for the Z900RS, but for some reason, the position is on the opposite (back) side of the OEM.
It looks hard to do when removing it because it is about 10 cm away.

Since there are only two fixation points, one at the exhaust flange and the other at the silencer, it can be used for a long period of time.
Durability is a little uncertain.

How was your experience with it?

The thick exhaust pipe that looks like a hand bent, and the silencer angle of the pusher is also good for Parenthesis.
Material also gets a burnt color if it runs.:The good thing about TitaniumExhaust pipe.
The sound may depend on the Silencer combined, but since the catalyst and SaPig equalizer are eliminated, the sound is basically bombastic.
The sound quality is muddy from the Idling, with a rough, dusky sound rather than a clear, pleasant sound.
Exhaust pipes are just bundled together and not etc. length, which may cause turbidity due to exhaust interference, etc.
Frankly, I do not prefer it compared to the pleasant sound of SC-PROJECT.

Combined with Bullet Silencer but with Inner baffle
It seems that the exhaust resistance is quite low and I don't feel that the low speed Torque is extremely low, nor is the AfterFire at all.
It feels like the performance is down because it feels like it is stuck on top of the bomb.
I would like to eventually try it withwithout Baffle and other Silencer to see how the volume, sound quality, and performance changes.

If you think that you can get a Titanium Full Exhaust System at a relatively low price if you choose a cheap Silencer, you can get a Titanium Full Exhaust System at a relatively low price.
I would recommend it if you think it's cosmetic but don't care about the rest as long as it looks good.

[Included Parts:were they on?

Instruction Manual、Material:Includes AluminumFlange and Spring. (Also available for SilencerSpring)

[Was there anything that disappointed you?

As already mentioned, the roughness of the finish, weight, and sound quality are all disappointing.
Perhaps it was made by an apprentice? The finish makes you think
I must say that it is a bit disappointing to ship this Level in a product that costs more than 100,000.

According to the Instruction Manual, it is not returnable once the Vinyl containing the respective Parts is broken.
It is better to Check well before opening the package.

What does it mean that the initial four-month wait was suddenly delivered the following month?
Would it be too much to suspect that a B-grade shipment was made...

Other items that would be helpful

Items to buy together:.
This product is a PipeSingle Body, so a silencer, silencer fixing bracket, etc. are required separately. View detail

Full Exhaust System Hexagon Silencer Type SP

K-FACTORY

09 Oct 2023

FRC Titanium Full Exhaust Single-Out

Fits: SUZUKI GSX1300R GSX1300R HAYABUSA

Japanese Webike user

4/5

A valuable option to get a new one in a well-known place.

Installed on a GSX1300R 1999

I originally used another Other Brand ProductFull Exhaust System, but the Flange part cracked, so I purchased this as a replacement.

Even if you go to ManufacturerSite to look at this product, there is not much information on it, and it takes a lot of courage to pay several hundred thousand yen for it.

However, as far as I could see on Webike, the only Full Exhaust System compatible with the first generation GSX1300R HAYABUSA that I personally know of is K-FACTORY, which is the only Manufacturer that I know of.
If I could get it, I would have preferred YOSHIMURA, AXIS Lapo, or Wyvern….

Although it is difficult to judge from the product image, this product is a Full Exhaust System of the type that connects the plugs with springs.
It is a 4-2-1 set pipe, but divided into 4 Pipes, 4-2 set Pipe, 2-1 set Pipe, Silencer,.
It also has an O2Sensor boss.
The glossy, thick Pipe is also decorated with flamboyant iridescence, which is less aesthetically appealing than the thin-walled, material-as-is, smooth-textured, stiff Race tube from AXIS La.
(Although it is thicker, it is still Titanium, so it is obviously lighter than non-Titanium.)

First, this product claims It does not correspond to Japanese Vehicle Inspection. However, Silencer contains a kind of catalyst and (Purification performance is unknown) and Tail Pipe is also very narrowly focused.
In fact, Idling is quite quiet.
However, when the Axel is opened a little, a chirping sound like the contact of Gold is heard.
Suspecting a spring with loose tension and no rubber cover, I replaced it with a spring with rubber from another car, but it still hardly fit.
However, the Spring that I purchased separately was also loose, so that may be the reason. Or maybe the clearance between the Spring and exhaust pipeBody is too tight and vibration is interfering with it?

Also, the O2Sensor boss is attached to the 2-1 set Pipe, but the Plug (lid) is not included.
Some years/destinations do not have an O2Sensor, in which case a separate Plug must be obtained.
I had a Spec. without O2Sensor, so I transplanted a Plug from the Full Exhaust System of another car I was originally using.

Also, 2-1 set Pipe and Main frame (The part extending for Center Stand installation) Clearance of the is tight.
To be assembled by insertion as mentioned above. (?) The installation position of the unit may be different from that of the other units.
I shaved the main frame side.
Also, as is common with external exhaust systems, the clearance with Cowl is also very tight.
Especially the 2-1 assembly area and the part coming out from it to the Right Side of the car body.
There is also an insulating seal and a collar to let the cowl side out slightly, but I don't think it can compensate for that.
Measures such as wrapping Vantage should be considered.

The rest of the time, the collar of the insertion is low overall, and it moves with relative ease and giggles.
This may be due to the fact that the fixation of the exhaust pipe suspension is omitted.
However, since it is made of Titanium, it is lightweight, so this may be sufficient to ensure the strength of the product.
Also, if the angle is not adjusted properly when Silencer is installed, it will be attached quite wide.
It is necessary to adjust the mounting angle by looking at every corner, as it may cause interference with the Frame and Cowl mentioned above.

Originally, my GSX1300R HAYABUSA did not have an exhaust gas test at the time of inspection due to its age, so I planned to pass the inspection as is, using Baffle for noise control if necessary.
However, if the aforementioned chirping sound is caused by a spring, it is pointless to add a baffle.

I have written a lot about it, but even so, it has been 15 years since the end of the MODEL Full Exhaust System.
I feel that I should first thank you for still Lineup.
Personally, I prefer the more foolish and Spartan atmosphere per AXIS Rapo….
Also, if you do not like Silencer, the company sells several patterns as Universal, so you may be happier if you try to find one. View detail

K-FACTORY

15 Apr 2022

Full Exhaust System Stainless Steel

Fits: HONDA MONKEY125

NO NAME

5/5

K-FACTORY Full Exhaust System for Honda Monkey 125

About quality and texture - Top quality. Very happy with the stainless steel material used and the overall finish of the build. About the feeling of use - I'm not a huge fan of the down type exhaust on the Monkey bikes but due to the aggressive angle of the muffler on this system I'm happy with the look. With JMCA certification this exhaust has a nice tone and is not overly loud. Products to buy together - If you decide to go with the down type exhaust or another you will be wanting a right side cover to cover the void left by removing the up type exhaust. Webike have many different styes on offer. Difficulty of installation - Pretty easy installation with an exhaust on the Monkey. Nothing difficult to mention and you will have it wrapped up in under an hour. Cost performance and comparison with other products - This exhaust price looks to be middle of the range for the Monkey but you're getting top quality material and a build finish to match for your money. About shipping and packaging - I think Webike are doing their best with shipping pricing, so I'm happy. Packages ship within 24 hours and arrive very quickly from Japan. Any concerns, cautions, or advice when purchasing - If you are looking an exhaust that can perform well with a reasonably modified engine then this could be for you but if you want an exhaust for maximum performance then I'd say not. View detail

K-FACTORY

03 Nov 2021

CLR (Titanium Exhaust Pipe Single Item)

Fits: KAWASAKI Z900RS, KAWASAKI Z900RS, KAWASAKI Z900RS CAFE, KAWASAKI Z900RS CAFE

Japanese Webike user

5/5

Good shape

[How is it used?
daily use (Touring)
Was the one you received as per Image?
As Image because I had checked the actual product.
Was the installation difficult?
There is a difficulty in removing the OEM exhaust pipe, but the installation is not a problem if it follows the order surely.
How was your experience with it?
I'm worried about the after. I don't feel the lack of low-speed torque as much as people say, but I think ECUSetting is necessary. If you want to use it with the K-FACTORY Bullet Silencer, you should use the large size Baffle. It is light weight.
[Included Parts:were they on?
It is included and no problem.
[Was there anything that disappointed you?
None
Other items that would be helpful
It's easier if you have a Point, hang…Lift or Jack to install.
Instruction Manual…Yes・Easy to understand…○
Notes…OEMExhaust pipe removal.O2 Sensor routing.
Items…Silencer & Gasket to buy together
Opinions and requests to Manufacturer…Nothing in particular. View detail

Full Exhaust Muffler 2pipes(Hexagon Silencer) JMCA Certification

CSR + Full Exhaust System Standard Type [JMCA Certification]

K-FACTORY

06 Dec 2020

Full Exhaust System Hexagon Silencer

Fits: KAWASAKI ZX-25R, KAWASAKI ZX-25R

Japanese Webike user

5/5

Kawasaki's Green with Gold

[How is it used?
Touring Main.
Was the one you received as per Image?
It was as expected.
The exterior finish is also Beautiful!
Gold silencer looks a little green when reflected in the blue sky
Was the installation difficult?
The removal of the Cowl can be found on the Net, and I have a set of tools, so I did the work myself, but you will need a Glasses Wrench or Hexagonal Wrench to remove and install the Bolt and Nut!
If you don't have maintenance experience, the Shop is stable.
It took me about two hours, partly because I was so careful.
How was your experience with it?
We all have our own taste in sound, but it's great for the bass.
Personally, I think it's not too loud.
It's a pretty good price, but I'm happy with it and I'm glad I bought it.
[Included Parts:were they on?
The Exhaust Gasket is not included, so if you're worried about reusing it, order it!
[Was there anything that disappointed you?
It is not.
Other items that would be helpful
Point and hang of installation
Installation of the Exhaust System was no problem as the Instruction Manual is included (OEM removal is not listed.)
How to remove the Cowl is not listed in the Instruction Manual, so look it up in Netetc.
The O2 sensor will be installed behind the OEM, so Wiring will not be able to reach it.
Remove the Clamps on the O2 Sensor Connector and move it to a more comfortable position.
I have another Connector underneath the O2 Sensor's Connector, so I swapped positions above and below it. (At your own risk.)
Points to note
Silencer is Gold and the color does not change, but the exhaust pipe is Clear titanium with Silver.
It's like when you get on it and it heats up, the color changes depending on the temperature.
It may not be as beautiful as the ones shipped from the Manufacturer in blue, but it's just a matter of personality.
It is better to wipe off any oil, etc. that may be attached to the engine before starting the engine to prevent uneven burning.
At first, there is a smoke coming out of the exhaust system after turning off the engine, but it looks like the smoke from the rust inhibitor?
Don't worry, you won't be able to get out on the ride. View detail