Exhaust Collector / Downpipes Fits: BMW M1000XR 2023, 2024, 2025 models. - Made from 304 Grade Stainless Steel - TIG welded by hand for smoother internal surface. - Modern spring fit design. - These weigh in at a featherweight 4kg / 8.8lbs (original exhaust 8kg / 17.6lbs). Saving half the weight. - Replaces the heavy and restrictive original. - Silencer connection is the same position, diameter and angle as the original. Accepts original Lambda sensors (O2 sensors). - Healtech electronic valve eliminator included with the kit. - Accepts the original BMW Silencers and our own Black Widow M1000XR silencers or any other fitted to the original headers. - Fitting instruction sheet included. - 2 Year Black Widow Unlimited Mileage Warranty.