{"product_id":"jetprime-pair-system-eliminator-cover-yamaha-r1-2004-jp-es-033","title":"JetPrime PAIR system eliminator cover for Yamaha R1 (2004–2025) – JP ES 033","description":"\u003cp\u003eThe JP ES 033 blanks the PAIR ports on the R1's cylinder head, covering two decades of the model.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eYamaha R1 (2004–2025)\u003c\/li\u003e\n\u003cli\u003eMachined block-off cover for the PAIR ports\u003c\/li\u003e\n\u003cli\u003eSealed with its own gasket\u003c\/li\u003e\n\u003cli\u003eFully reversible to standard\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTwenty-One Model Years\u003c\/h2\u003e\n\u003cp\u003eYamaha kept the R1's secondary air arrangement consistent from 2004 through to the current track-only bike. A single cover spanning that is unusual and useful.\u003c\/p\u003e\n\u003ch2\u003eClosing the Galleries\u003c\/h2\u003e\n\u003cp\u003eThe plate seals the passages that carry fresh air into the exhaust ports, which is what physically stops the system rather than merely disconnecting it.\u003c\/p\u003e\n\u003ch2\u003eSupplied Sealed\u003c\/h2\u003e\n\u003cp\u003eA dedicated gasket comes with the cover. Beside an exhaust port a hand-applied bead hardens and fails, usually at the least convenient moment.\u003c\/p\u003e\n\u003ch2\u003eBefore and After the Crossplane\u003c\/h2\u003e\n\u003cp\u003eThe fitment covers the flat-plane bikes up to 2008 and every crossplane R1 since. Yamaha changed the firing order and left the emissions plumbing alone.\u003c\/p\u003e\n\u003ch2\u003eWhere the Popping Comes From\u003c\/h2\u003e\n\u003cp\u003eFresh air meeting unburnt fuel in a hot header. Riders blame the exhaust and the exhaust is almost always innocent.\u003c\/p\u003e\n\u003ch2\u003eMachined, Not Pressed\u003c\/h2\u003e\n\u003cp\u003eA cut plate keeps its sealing face through the thermal cycling a cylinder head sees. Stamped covers distort and then leak.\u003c\/p\u003e\n\u003ch2\u003eEmissions Approval\u003c\/h2\u003e\n\u003cp\u003eRemoving the system takes the motorcycle outside its type approval. That makes this a closed-circuit modification and the listing does not disguise it.\u003c\/p\u003e\n\u003ch2\u003eMapping Without Interference\u003c\/h2\u003e\n\u003cp\u003eOxygen injected downstream of combustion makes the sensor report a lean mixture that is not there. Any serious fuelling work begins with this removed.\u003c\/p\u003e\n\u003ch2\u003eNothing Modified\u003c\/h2\u003e\n\u003cp\u003eThe factory cover and gasket refit at any point. The head itself is untouched throughout.\u003c\/p\u003e\n\u003ch2\u003eTwo Firing Orders, One Cover\u003c\/h2\u003e\n\u003cp\u003eThe fitment spans the flat-plane bikes up to 2008 and every crossplane R1 since, which are very different motorcycles sharing a cylinder head layout. Yamaha changed the crankshaft and the character and left the emissions plumbing exactly where it was.\u003c\/p\u003e\n\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eYamaha R1 (2004–2025)\u003c\/li\u003e\n\u003cli\u003eCovers the R1 Gytr versions of this model\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003eJP ES 033\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer\u003c\/th\u003e\n\u003ctd\u003eJetPrime\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eCNC-milled Ergal 7075\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003ctd\u003eYamaha R1 (2004–2025)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInstallation\u003c\/th\u003e\n\u003ctd\u003ePlug-and-play, no wiring harness modifications required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"JetPrime","offers":[{"title":"Default Title","offer_id":53168766681354,"sku":"JP ES 033","price":3668.0,"currency_code":"MUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/137_0.png?v=1788517567","url":"https:\/\/inter-pace.com\/en-mu\/products\/jetprime-pair-system-eliminator-cover-yamaha-r1-2004-jp-es-033","provider":"Inter-Pace","version":"1.0","type":"link"}