Exhaust Collector / Downpipes Fits: BMW S1000R 2017 2018 2019 2020 models. - TIG welded by hand for smoother internal surface (reduces internal turbulence, improves gas flow). - Lightweight system. - Accepts original Lambda sensors (O2 sensors). - Designed to fit the original BMW Silencers and our own Black Widow S1000R silencers or any other fitted to the original headers. - Fitting instruction sheet included. - 2 Year Black Widow Unlimited Mileage Warranty.
