Black Widow Exhausts

Performance Motorcycle Exhaust Downpipes & Link Pipe

Fits : Kawasaki 

Ninja ZX4-R 2023, 2024, 2025 models

Ninja ZX4-RR 2023, 2024, 2025 models

• Louder with improved gas flow.

• Removes the restrictive catalytic converter and allows for replacement of the heavy OEM muffler / Silencer.

• Accepts your original Lambda (O2) sensors keeping your bikes engine management system, so no changes or modifications are required to your bike. No fault codes will appear when you install our system.

• Designed to fit slip - on silencers with a 51.5mm diameter inlet, and our own Black Widow Silencers.

• See kit photo for what's included. 

• Fitting instructions included.

• Material : 304 Grade Stainless Steel.

• 2 Year Black Widow Unlimited Mileage Warranty.