Motorcycle Slip-On Exhaust Reviews

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PRUNUS

21 Feb 2024

Megaphone Exhaust System

Fits: YAMAHA SR400

Japanese Webike user

5/5

OEM Product quality outside the company.

Single-cylinder and two-cylinder motorcycles, such as the SR, are said to be motorcycles that enjoy style and sound. Therefore, there are many kinds of external exhaust systems to choose from. However, this time, we chose this one because we wanted to replace the OEM Exhaust System after understanding the OEM Exhaust System well.

To begin with, what kind of merit or demerit is involved in changing to an external exhaust system?

Merit
1:The appearance that matches one's ideal. dress-up effect.

2:Exhaust sound to your liking. Straight pipe construction without much sound deadening material like OEMs, so it is easy to produce sound. It can be a crisp exhaust sound or a roaring high-pitched sound.

3:Good disconnection makes it easier to feel Stress at high RPMs and easier to turn to higher RPMs.
High rpm is stabilized and most large horsepower is increased.

4：Lighter weight:2 kg or more lighter than OEM. The OEM exhaust system is heavier than the external system because of the complex construction of the exhaust pipe, which is wrapped with a muffler to suppress the loud noise. 。

5:The material is highly resistant to aging.
OEM exhaust systems are often made of steel, and if used for long periods of time, rust can cause holes and leakage of exhaust gas. 。 For external exhaust system, Plating Processed Steel, Material:Stainless Steel and Material:It is strong in Rust due to the use of expensive Materials such as Titanium.

Demerit
1:The vehicle may not pass inspection due to exhaust system noise. Also, there is a possibility that the exhaust gas standard may be exceeded by a large amount due to the large amount of exhaust.

2:Vibration may cause Stress to Passenger. OEMExhaust System reduces not only the sound but also the vibration associated with the sound by its internal structure.

3:Decrease in fuel consumption. The structure of the exhaust system is simple and easy to exhaust, which makes it easy to speed up, but it makes it difficult to start and accelerate. Therefore, the Axel is turned more, and more fuel is used than usual, resulting in lower fuel economy.

4:Low-speed Torque tends to drop in exchange for higher RPM.

So, the answer is "OEM is the best". It is not better to be satisfied with OEM, but people always want to improve the sound, looks, and performance.

So I thought,
(1) Exhaust Gas and volume of Japanese Vehicle Inspection Correspondence.
(2) Weight.
(iii) Manufacturer.
(4) Power characteristics close to NORMAL.

The task was to find an Exhaust System that met those desires.
And here is the Exhaust System.

good point
◎Japanese Vehicle Inspection Correspondence.

◎OEM 7.2kg, Planus 5.1kg→ lightweight.

◎Sakura Industries originally manufactures OEM exhaust systems for SR400 and YAMAHA vehicles. The quality, volume, and performance are unmistakable.

◎Tested by Chassis dynamo. Power output is good even without intake setting.

As for Demerit, it means that the price is high.
OEM exhaust systems are more expensive than external exhaust systems. Considering that, I don't think it is that expensive.

There is no right answer to the question of what to look for in an external exhaust system, and it varies from person to person.
If you understand how good the OEM exhaust system is, and if there is an external exhaust system that does not destroy the characteristics of the OEM exhaust system to a large extent, you may call it a good exhaust system. I think it is a good exhaust system. It is a pet theory (laugh).
We have introduced this method of selection because it is also possible. View detail

Slip-on Silencer HEPTA FORCE TSS CYCLONE EXPORT SPEC Japan Government Certificated

Vintage Megaphone Chromium Slip-on Exhaust System

K-FACTORY

03 Feb 2024

Barrett silencer

Japanese Webike user

2/5

It's a shame, because Parenthesis looks great.

[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 imprements were installed on a previous Z900 (unmarked)
Full titanium exhaust & SC1-RSilencer by SC-PROJECT
This is a very dry comparison with

Was the one you received as per Image?

Material:I found it surprisingly heavy for this Size in Titanium.
The slanted area on the opposite side of the exit has a rough surface like sharkskin.

Was the installation difficult?

When installing the inner baffle, use a ring to hold it down so that it does not wobble inside.
The system allows the user to enter the parts, but there are many similar parts, so it was difficult to know which parts to use.
I wish they would number the bags containing the Parts.

Silencer band is included, but you need to prepare your own bracket and bolts for fixing.
You need to be creative and inventive yourself.
I installed it in combination with K-fac's CLRExhaust pipe,
The bracket is Nankai Parts' Universal Bracket Length 225mmOffset 75mm (Part No. MSTL-225FR-75),
The silencer was fastened to the OEMLoading Hook by using the OEMSilencer Fixing Bolt.
Spring is the one that came with the CLRExhaust pipe.

However, the Silencer band is a little small in diameter and deformed when used as it is.
The bracket is then connected to the OHLINS Preload Adjuster.
Spacer of 3mm was put in because of interference.

How was your experience with it?

In combination with K-fac CLRExhaust pipe, even with inner baffle in place.
Considerable blast from Idling.
It might be more annoying than the SC-PROJECTFull Exhaust System without Baffle that was installed on my previous Z900 with the same Straight structure.

The Z900 series has a high ColdStart Idling.
Idling in a residential area is a Level that is sure to be Objection from neighbors.
Baffles can be attached to the exits as well,
It sounds like a whistle, like a Large Dump car, and I can't bring myself to use it.

The sound quality is rough and muddy from Idling with CLRExhaust pipe + Inner baffle.
The sound does not become a clear high-pitched or pleasant sound as it is turned, and it remains a harsh, dusky sound until the very end.
The trend may be similar to the OEM sound.

It seems that the inner baffle is causing a lot of exhaust resistance.
I don't feel that the low speed Torque is extremely gone and AfterFirea is not at all.
I feel that the performance has been downgraded quite clearly because it feels like it is jammed on top despite the bombast.

I tried running the next day WITHOUT Baffle's full Straight and it was so loud that I could say it was heinous.
Level, which is no different from the straight pipe of a family car.
The sound quality and running are better than with Baffle, but at any rate, it is too noisy.
It is highly likely that we will abandon the use of the system, although we need to consider whether we should compromise on driving and sound by emphasizing style.

Very disappointed because I like the look of Large.
Link pipe and Quantity as Slip-on Silencer for Z900RS OEM exhaust pipe:There are some that are sold Set.
It might work there.

[Included Parts:were they on?

・Instruction Manual
Silencer Band (possibly Material):(Stainless Steel)
Adapter for mounting on 54mm exhaust pipe, Spacer, etc.
1 pc. each of exit and inner baffle for installation.
K-fac Emblem
(Spring not included)

[Was there anything that disappointed you?

I was expecting the sound quality to be clear and pleasant like the previous SC-PROJECT car.
With Baffle, it was like a very loud OEM that I didn't like.
The sales pitch was that the volume could be adjusted by using a combination of inner and exit baffles.
The volume of the Inner is not as low as expected, and the sound quality is poor.
Exhaust resistance is too Large and performance is down from NORMAL to Large.

Other items that would be helpful

Items to buy together:.
This is a Universal Product, so brackets, springs, bolts, etc. for fixing the silencer are required separately. View detail