4-1 Exhaust Downpipes Fits: Ninja 1000 SX 2020 2021 2022 2023 2024 models. - Compatible with the original silencer/muffler or any that is fitted to your original headers. Identical connection specifications as the original. See our silencer/muffler options for the complete system upgrade. - Accepts original lambda sensor, no fault codes will appear. - Plug and play, no ECU remapping or modifications. - Tig welded for smooth internals, increased internal gas flow and performance. - Ultra-light specification stainless steel 4.2 / 9.3 lbs in weight, Total weight is reduced by 3.4 KG / 7.4 lbs. ( original headers weigh 7.6 KG / 16.7 lbs ) - 2 Year Black Widow Warranty.
