{"product_id":"akrapovic-optional-header-titanium-bmw-r-12-nine-t-e-b12e6","title":"Akrapovic Optional Header Titanium BMW R 12 \/ R 12 nineT (2024-2026) – E-B12E6","description":"\u003cp\u003eFive point three kilograms off a heritage boxer. BMW's standard header assembly on the R 12 weighs 8.3 kg — a substantial steel construction with the catalytic converter built in — and this titanium replacement weighs 2.99.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e2.99 kg against the standard 8.3 kg: 5.3 kg and 64 per cent less\u003c\/li\u003e\n\u003cli\u003e4.1 PS more at 7,500 rpm, peak output rising from 102.8 to 109.4 PS\u003c\/li\u003e\n\u003cli\u003e2.1 Nm more at 6,700 rpm\u003c\/li\u003e\n\u003cli\u003eMade from the finest titanium\u003c\/li\u003e\n\u003cli\u003eTurns an Akrapovic slip-on into a full system\u003c\/li\u003e\n\u003cli\u003eAlso fits the Akrapovic silencer BMW supplies as an accessory\u003c\/li\u003e\n\u003cli\u003eNo road approval — circuit use only\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWeight Where a Retro Bike Carries Too Much\u003c\/h2\u003e\n\u003cp\u003eThe R 12 and R 12 nineT are built to look right first. That means a lot of visible metal and a chassis that is not especially light — 220 kg for the nineT — with the header assembly slung low between the cylinders.\u003c\/p\u003e\n\u003cp\u003eRemoving 5.3 kg from that position lowers the centre of gravity as well as the total, which on a bike ridden slowly through towns and parked by hand is felt more than the power figure.\u003c\/p\u003e\n\u003ch2\u003eAbout the Check Engine Light\u003c\/h2\u003e\n\u003cp\u003eAkrapovic recommends remapping the ECU after fitting, specifically to prevent the check engine warning and to get optimised performance and throttle response. On Euro 5+ machines with two lambda sensors the light will otherwise come on, because the sensors no longer see a catalytic converter where the ECU expects one.\u003c\/p\u003e\n\u003cp\u003eThat is not a fault and it is not a reason to avoid the part. It is a cost to plan for alongside it.\u003c\/p\u003e\n\u003ch2\u003eWhat You Need Alongside It\u003c\/h2\u003e\n\u003cp\u003eThis header does not work on its own. It requires an Akrapovic slip-on — for these motorcycles that is S-B12SO25-HISSSBL, the black-coated stainless double conical set. It also fits the Akrapovic silencer BMW offers through its own accessory range.\u003c\/p\u003e\n\u003ch2\u003eSixty Minutes, Because It Is a Boxer\u003c\/h2\u003e\n\u003cp\u003eSixty minutes is short for a header, and the reason is the engine layout. A boxer's cylinders point sideways, so the exhaust flanges sit in the open air rather than buried under a fairing and a radiator. Nothing major has to come off before the work starts.\u003c\/p\u003e\n\u003cp\u003eCompare that with the 180 minutes Akrapovic quotes for the S 1000 header, where the cooling system is in the way. The same category of part, three times the labour, purely because of where the engine puts its ports.\u003c\/p\u003e\n\u003ch2\u003eWhat You Give Up\u003c\/h2\u003e\n\u003cp\u003eRemoving the catalytic converter is what delivers the 4.1 PS and the 5.3 kg, and it is also what ends the type approval. There is no version of this part that does one without the other.\u003c\/p\u003e\n\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\n\u003cp\u003eE-B12E6 covers the BMW R 12 and R 12 nineT from model year 2024 through 2026. Installation is quoted at 60 minutes — short for a header, because a boxer leaves the exhaust flanges accessible from the side.\u003c\/p\u003e\n\u003ch2\u003eRoad Approval\u003c\/h2\u003e\n\u003cp\u003eNone. This product does not meet emission compliance requirements for street or highway use.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePart number: E-B12E6\u003c\/li\u003e\n\u003cli\u003eEAN: 3831126434267\u003c\/li\u003e\n\u003cli\u003eFitment: BMW R 12, R 12 nineT (2024–2026)\u003c\/li\u003e\n\u003cli\u003ePart type: optional header\u003c\/li\u003e\n\u003cli\u003eMaterial: titanium\u003c\/li\u003e\n\u003cli\u003eWeight: 2.99 kg (stock 8.3 kg, saving 5.3 kg \/ 64 %)\u003c\/li\u003e\n\u003cli\u003ePower: 109.4 PS (stock 102.8 PS, gain 4.1 PS at 7,500 rpm)\u003c\/li\u003e\n\u003cli\u003eTorque: 109.4 Nm (stock 107.3 Nm, gain 2.1 Nm at 6,700 rpm)\u003c\/li\u003e\n\u003cli\u003eRequires: an Akrapovic slip-on, e.g. S-B12SO25-HISSSBL\u003c\/li\u003e\n\u003cli\u003eECU remapping: recommended\u003c\/li\u003e\n\u003cli\u003eInstallation time: approx. 60 minutes\u003c\/li\u003e\n\u003cli\u003eRoad approval: none — track use only\u003c\/li\u003e\n\u003cli\u003eCountry of manufacture: Slovenia\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Akrapovic","offers":[{"title":"Default Title","offer_id":53627888271626,"sku":"E-B12E6","price":100400.0,"currency_code":"ALL","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/01_5e551f2c-79bf-4f9e-acb0-aa6001f3216c.png?v=1788530841","url":"https:\/\/inter-pace.com\/en-al\/products\/akrapovic-optional-header-titanium-bmw-r-12-nine-t-e-b12e6","provider":"Inter-Pace","version":"1.0","type":"link"}