Fitment / Compatibility: Street / Sport / Adventure bikes: fits BMW S1000XR (2015–) and also S1000R models in similar years.Material Options: Available in stainless steel version — this variant is often listed as “SS” (stainless steel) collector/header.
Performance Gains (as per manufacturer/resellers): +5.0 kW power gain @ ~ 6450 rpm +7.5 Nm torque gain @ ~ 6250 rpm. Weight savings of around 5.0 kg compared to stock (for stainless version)
Design Features & Usage: Acts as a “collector/header” piece intended to be used with an existing Akrapovič slip-on exhaust system, allowing upgrade without full replacement of exhaust. Precision bends and joiner flanges to maintain exhaust flow dynamics, maximise lean angle clearance, and align with the slip-on system. As with many aftermarket headers, use may require ECU remapping or special fuel tuning to avoid check engine alerts / suboptimal fueling.
Caveats / Notes: This header is often classified as a “non-compliant with emissions/racing / off-road use only” component in many markets. Installation is more involved than simple slip-ons; a proper gasket, fitment, and possibly additional hardware or modifications may be needed.