K-FACTORY Motorcycle Full Exhaust System Reviews

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K-FACTORY Full Exhaust System Clear all

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

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