The Yoshimura Straight Cyclone was released for the Honda GB350, popular for its single-cylinder long-stroke engine and neat style. This is a standard muffler for old Japanese motorcycles, but it is also a surprisingly good match for the traditional single-cylinder GB.
You can enjoy a crisp big single sound.
The Slip-On Straight Cyclone for GB350 is a new muffler that realizes Yoshimura's traditional straight pipe style in a slip-on style. It delivers powerful torque right from the start of acceleration, and the unique silencer internal structure optimizes exhaust pulsation. The powerful sound can be enjoyed.
The product is a slip-on type with a single silencer priced at (approx.) 489 USD. The GB350's exhaust pipe is unpainted, so it is unusual that it has a polished finish to match this. The appearance of the product has a great impact as it changes from the normal megaphone type to a straight pipe style.
The unique sound of the GB350's big single has been transformed into a more powerful and crisp sound quality by installing the Straight Cyclone. Not only is it more fun to turn the accelerator on and off during acceleration and deceleration, but it is also more pleasing when cruising.

GB350 Slip-On Straight Cyclone Government Certified [YOSHIMURA] Compatible with 2BL-NC59 after 2021, (approx.) 489 USD. The straight cyclone matches the old fashioned style of GB350.

The silencer end is stamped with the red emblem, a proof of originality, and two stampings of YOSHIMURA and YOSHIMURA.

The silencer is 89 mm in diameter, which is thin as a straight cyclone. This has also achieved a weight reduction from 3.4kg of STD to 3kg.
GB350 Slip-On Straight Cyclone Government Certified Product Overview
Main material: Stainless steel
Proximity exhaust noise: 90dB/2,750rpm
Acceleration noise: 82dB
Government-Certified Exhaust JMCA approved
Conforms to emission regulations Conforms to noise regulations
Vehicle inspection compliant
2-year warranty
Gasket: OEM product used
Price: (approx.) 489 USD