SP TADAO released 3 kinds of POWERBOX slip on exhaust systems, which are the “Whisper” for SEROW250, the “FULL S” and the “FULL SilentVersion” for NMAX155. All of them are certified type by Japanese government.

“POWERBOX Whisper” for SEROW 250

MSRP: 53,784 yen (Tax Included)

Features (from Official Site)

For you to love the sounds of nature.
“Whisper” has created a sound, such as snapping .
It is not to miss listening the murmurs of the wind.
It is not to interfere the chirping of birds.
Just tried a little smaller sound.
While the ride feeling is a little bit gentle,
It inherited the basic characteristic from power box silencer.

Product Summary

[Material]
• Outer silencer: Ultra-light Titanium
• Inner silencer: Ultra-lightweight Stainless Steel

[Exhaust Noise Volume]
82dB (Proximity)
72dB (Acceleration)

YAMAHA Code: Q5KSPT958165 (Titanium Blue), Q5KSPT958141 Japanese Government Certified No.: 1116021157 (Stainless Steel)
Oil System: Drain Bolt: Replaceable/Filter: Replaceable
Production: Made in Japan

[Related Videos]
YAMAHA SEROW/SP TADAO POWER BOX Exhaust Pipe Installing Video

YAMAHA SEROW/SP TADAO POWER BOX Exhaust Pipe Sound Checking Video

“POWERBOX FULL S” for NMAX155

MSRP: 74,304 yen (Tax Included)

Features (from Official Site)

The NMAX155’s degree of perfection is more amazing than NMAX125.
For that reason, there is a considerably higher expectations from the user!！
But, the process was very hard.
We stuck to the length and thickness of a single pipe in order to change the output characteristics.
We also stuck to the size and mounting position of the BOX in order to produce the good acceleration and torque.
Thanks to it we were able to get a great performance.
Comfortable riding and gentle sound.
It is the birth of the exhaust that is the best feeling to say in a word!

Product Summary

[Material]
• Outer Silencer: Ultra-lightweight Stainless Steel Polish
• Inner Silencer: Ultra-lightweight Stainless Steel

[Exhaust Noise Volume]
84dB (Proximity)
77dB (Acceleration)

YAMAHA Code: Q5KSPT958202 (Stainless Steel), Q5KSPT958219 (Titanium Blue)

Japanese Government Certified No.: 1116021165
Oil System: Drain Bolt: Replaceable/Filter: Replaceable
Production: Made in Japan

“POWERBOX FULL SilentVersion” for NMAX155

MSRP: 72, 144 yen (Tax Included)

Features (from Official Site)

The degree of perfection of NMAX155 is exactly the vehicle for Ladies and Gentlemen.
The feeling of power and cornering is very nice with a sense of stability!
We thought it does not need this kind of exhaust system for this motorcycle.
We had a very hard development in order to meet the user’s request.
Thanks to, the special acceleration gives a nice feeling! You will never feel it in standard exhaust system!
The strong torque will come out violently by slightly twisting the accelerator in the mid-speed range.
This exhaust system has a quiet sound, so you can use it for commuting early morning or late night without worries.
Anyway, you can enjoy riding it with a very good feeling!

Product Summary

[Material]
• Outer Silencer: Ultra-lightweight Stainless Steel Polish
• Inner Silencer: Ultra-lightweight Stainless Steel

[Exhaust Noise Volume]
83dB (Proximity)
77dB (Acceleration)

YAMAHA Code: Q5KSPT958202 (Stainless Steel), Q5KSPT9582198 (Titanium Blue)
Japanese Government Certified No.: 1116021165
Oil System: Drain Bolt: Replaceable/Filter: Replaceable
Production: Made in Japan

• Webike shopping SP TADAO brand page
http://japan.webike.net/brd/SP+Tadao/703/

Original Source [ SP TADAO ](*Japanese)