BUMBLEBEE HR1 EXHAUST

BUMBLEBEE HR1 EXHAUST

The HR1 exhaust pipe has one additional gas cylinder compared to other exhaust pipes, giving you an extra torque and reducing noise by one level. This means less disturbance when stopping at traffic lights or returning home late at night, especially during low RPMs.

The most significant feature of the HR1 is the inclusion of this gas cylinder mechanism, which adopts the active physical noise reduction principle of the Helmholtz resonance. This mechanism actively reduces the resonance and noise generated during exhaust, hence the name "HR1." The design of the gas cylinder also incorporates many intricate details using laser engraving, adding to its overall completeness.

• Material Used: White Iron

• Hanging Bracket: Matte Black, Matte Silver, Matte Antique Bronze

• Internal Structure: 06 Direct Silent (86dB)

• Heat-resistant Protection Sheet: Carbon Fiber, Black Aluminum, Positive Burnt Titanium

• Additional Purchases: Titanium-plated Ring, Titanium-plated Spring (dB values measured under 4250rpm condition)

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