{"product_id":"akrapovic-optional-header-stainless-kawasaki-z900-2020-e-k9r4","title":"Akrapovic Optional Header Stainless Steel Kawasaki Z900 (2020-2024) – E-K9R4","description":"\u003cp\u003eFour kilograms and change, out of the middle generation of Z900. Kawasaki's standard header assembly on the 2020 to 2024 machines weighs 7.77 kg — a figure that only makes sense once you know the catalytic converter is buried inside it.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCut to 3.4 kg where Kawasaki's own assembly weighs 7.77\u003c\/li\u003e\n\u003cli\u003eOutput reaches 118.8 PS, seven above the standard 111.9\u003c\/li\u003e\n\u003cli\u003eTorque climbs to 96 Nm from 92, taken at 7,000 rpm\u003c\/li\u003e\n\u003cli\u003eWorks with any Akrapovic Slip-On Line built for this Z900\u003c\/li\u003e\n\u003cli\u003eConverts the silencer into a complete racing system\u003c\/li\u003e\n\u003cli\u003eTwo hours of workshop time\u003c\/li\u003e\n\u003cli\u003eNo road approval — circuit use only\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTwo Hours, Not One\u003c\/h2\u003e\n\u003cp\u003eAkrapovic quotes 120 minutes, the same as for the 2025 machine and double what the 2017 generation takes. Kawasaki tightened the packaging around the engine for Euro 5, and the header no longer comes out without the radiator and the lower panels being dealt with first.\u003c\/p\u003e\n\u003cp\u003eGet the labour quote for two hours before committing.\u003c\/p\u003e\n\u003ch2\u003eAny Slip-On Will Do\u003c\/h2\u003e\n\u003cp\u003eThe header is designed to work with any Slip-On Line Akrapovic builds for this Z900 — carbon or titanium, whichever is already on the motorcycle. An owner who fitted a silencer three years ago can complete the system now without replacing it.\u003c\/p\u003e\n\u003ch2\u003eWhich Z900 Is Yours\u003c\/h2\u003e\n\u003cp\u003eFour headers exist for one model name: this one for 2020 to 2024 full power, E-K9R2 for 2017 to 2019, E-K9R7 for 2025 onwards, and E-K9R5 for the restricted A2 machine.\u003c\/p\u003e\n\u003cp\u003eThe registration document settles it. Model year and kilowatt figure together identify exactly one of the four.\u003c\/p\u003e\n\u003ch2\u003eWhere the Weight Sits\u003c\/h2\u003e\n\u003cp\u003eThe header assembly runs under the engine at the lowest point of the motorcycle. Mass there does the least harm to handling of anywhere on the bike, so 4.37 kg from that position changes the total weight far more than it changes how the Z900 steers.\u003c\/p\u003e\n\u003cp\u003eTwo per cent of a 212 kg motorcycle is still two per cent, and it is the largest single reduction available here.\u003c\/p\u003e\n\u003ch2\u003eFive Model Years\u003c\/h2\u003e\n\u003cp\u003eKawasaki left the Z900's header design alone from 2020 to 2024 before the 2025 redesign, so one part covers the entire middle generation — including the machines sold as Euro 5 and the later Euro 5+ examples.\u003c\/p\u003e\n\u003ch2\u003ePlan the Mapping\u003c\/h2\u003e\n\u003cp\u003eRemoving the catalytic converter changes what the lambda sensors read, and the standard map was written around a converter being there. A dyno session with the header is money better spent than the same amount on another accessory.\u003c\/p\u003e\n\u003ch2\u003eKeep the Original\u003c\/h2\u003e\n\u003cp\u003eKawasaki's header assembly is bulky and awkward to store, but a Z900 offered with its complete original exhaust is a considerably easier sale. Find the shelf space.\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-K9R4\u003c\/li\u003e\n\u003cli\u003eEAN: 3831113577571\u003c\/li\u003e\n\u003cli\u003eBikes covered: Kawasaki Z900 full power, 2020 to 2024\u003c\/li\u003e\n\u003cli\u003eType of part: optional header section\u003c\/li\u003e\n\u003cli\u003eMade of: stainless steel throughout\u003c\/li\u003e\n\u003cli\u003eWeight: 3.4 kg fitted, 7.77 kg standard\u003c\/li\u003e\n\u003cli\u003ePower: up to 118.8 PS from 111.9 standard, read at 9,850 rpm\u003c\/li\u003e\n\u003cli\u003eTorque: up to 96 Nm from 92 standard, read at 7,000 rpm\u003c\/li\u003e\n\u003cli\u003eNeeds an Akrapovic Slip-On Line alongside it\u003c\/li\u003e\n\u003cli\u003eWorkshop time: about two hours\u003c\/li\u003e\n\u003cli\u003eApproval: none at all; closed circuits 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":53628635152650,"sku":"E-K9R4","price":4300.3,"currency_code":"DKK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/01_84e57e85-e8f7-4890-938a-8be64efa1f92.png?v=1788545667","url":"https:\/\/inter-pace.com\/en-gl\/products\/akrapovic-optional-header-stainless-kawasaki-z900-2020-e-k9r4","provider":"Inter-Pace","version":"1.0","type":"link"}