Optional headers constructed from the finest titanium offer an upgrade to a full system when used with the Akrapovic slip-on kit exhaust. Let your bike stand out with more power, beautiful design, and the unique Akrapovic sound. This header set removes the catalytic converter and valve but includes a pre-muffler for better performance, better throttle response and great power increase across the rpm range. An impressive weight reduction of 50% compared to the standard headers is achieved whilst the styling is completed with a carbon fibre heatshield. These optional headers are also compatible with the Akrapovic standard (first fit) / BMW accessory Akrapovic silencer. Constructed from high-grade titanium with a carbon-fiber heatshield Intended exclusively for closed-course competition circuits only Enhances performance and reduces weight Tubes with a bigger diameter than the standard stock system and removal of the catalytic converter allow for enhanced gas flow Pre-muffler offers a unique sound experience, producing a deep racing tone from the boxer engine Upgrade results in a 54.84% (3.4 kg) weight reduction compared to standard stock When combined with the Slip-On Line (Titanium), it boosts power by 3.1 kW (4.2 hp) at 7,800 rpm and torque by 5.9 Nm at 3,000 rpm, as tested on the Akrapovic dyno against a BMW R 1300 GS equipped with a standard stock system Installation is plug-and-play, but remapping is mandatory When installing the Optional Header on Euro5 motorbikes (2 lambda sensors), the engine check light will appear after identifying a deviation in the stock catalytic converter´s parameters. Note: When installing this header set, the motorcycle’s electronics will detect that the catalytic converter has been removed and thus will illuminate the informative cat warning light. This does not affect or alter the motorcycle’s rider modes or performance in any way. Compatible with the BMW centre stand. This product is designed and intended for closed course competition use only, and is labelled as such, it is neither designed or intended for use on public roads or land. Compatiable BMW: BMW R1300 GS BMW R1300 GS Adventure Self installation but note point 1. If you require this to be installed please contact us.