UK customers - please note this silencer is not road legal in the UK and will be marked Not for Road Use

Black Widow Exhausts

Motorcycle Exhaust Silencer Kit

Fits : Kawasaki  

Ninja ZX4 - R 2023, 2024, 2025 models

Ninja ZX4 - RR 2023, 2024, 2025 models

• Designed to fit your standard OEM downpipes and our own Black Widow De - Cat Downpipes.

• Replaces the heavy OEM silencer / muffler.

• Plug - and - play silencer kit - no modifications required to a bike on standard settings.

• Silencer fitted with a removable baffle / DB killer.

• See kit photo for included parts.

• Fitting instructions included.

• Link Pipe Material : 304 Grade Stainless Steel.

• Silencer Material : 304 Grade Black Painted Stainless Steel & Carbon Fibre Tip. 

• Silencer Body Length excluding tips : 300 mm.

• Silencer Code : 300BT / BC30V.

• See our Silencer Specifications for length & noise levels.

• 2 Year Black Widow Unlimited Mileage Warranty