Collector / Downpipes Fits: BMW S1000RR 2017 2018 models. - TIG welded by hand for smoother internal surface. - Modern spring fit design allows for fewer internal welds. - These weigh in at a featherweight 4kg / 8.2lbs (original exhaust 8kg / 17.6lbs). Saving half the weight. - Replaces the heavy original. - Silencer connection is the same position, diameter and angle as the original. - Accepts the original BMW Silencers and our own Black Widow S1000RR silencers or any other fitted to the original headers. - Fitting instruction sheet included. - 2 Year Black Widow Warranty.
