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

Black Widow Exhausts

Performance De - Cat Motorcycle Full Exhaust System

Fits : Kawasaki  

Ninja ZX4 - R 2023, 2024, 2025, 2026 models

Ninja ZX4 - RR 2023, 2024, 2025, 2026 models

• Removes the restrictive catalytic converter and replaces the heavy OEM silencer / muffler.

• Lighter with improved gas flow.

• Engine management light may appear when using this system, this can be prevented if being set up by a tuning specialist.

• Silencer fitted with a removable baffle / DB killer.

• See kit photo for included parts.

• Fitting instructions included.

• 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