{"product_id":"akrapovic-evolution-line-titanium-yamaha-yz450f-2026-s-y4met17-fdhlta","title":"Akrapovic Evolution Line Titanium Yamaha YZ450F (2026) – S-Y4MET17-FDHLTA","description":"\u003cp\u003eOne model year. Akrapovic lists this system for the 2026 YZ450F alone, and gives it the same published figures as the 2023–2025 article: 56.6 PS, 45.8 Nm, 3.32 kg. Different part, different mounting, same numbers.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eTitanium complete system for the 2026 model year YZ450F\u003c\/li\u003e\n\u003cli\u003e56.6 PS at 10,600 rpm, 45.8 Nm\u003c\/li\u003e\n\u003cli\u003e3.32 kg instead of the standard 4.17 kg\u003c\/li\u003e\n\u003cli\u003eListed for one model year only\u003c\/li\u003e\n\u003cli\u003ePriced slightly below the 2023–2025 article\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy a new part number for one year\u003c\/h2\u003e\n\u003cp\u003eA new part number in Akrapovic's catalogue usually means the mounting points, the header routing or the silencer position changed. The published performance figures are carried over unchanged, which suggests the engine is not what moved — the chassis around it is.\u003c\/p\u003e\n\u003cp\u003eWe report that as what it is: an observation from the data, not a statement from Yamaha. What is certain is that Akrapovic lists two different articles for 2025 and 2026, so the model year has to be right when ordering.\u003c\/p\u003e\n\u003ch2\u003eCheck the year before ordering\u003c\/h2\u003e\n\u003cp\u003eA 2025 YZ450F takes S-Y4MET16-FDHLTA. A 2026 takes this one. They are not interchangeable, and the difference is not visible in the published figures — only in the part number.\u003c\/p\u003e\n\u003ch2\u003eNot for the road\u003c\/h2\u003e\n\u003cp\u003eClosed course competition only. No EC or ECE approval.\u003c\/p\u003e\n\u003ch2\u003eBuying for a bike that is barely out\u003c\/h2\u003e\n\u003cp\u003eA system listed for a single model year is usually a system for a machine that has just changed. Ordering one for a 2026 YZ450F means the bike is new, the standard exhaust has done very little, and the case for replacing it is weight rather than wear.\u003c\/p\u003e\n\u003cp\u003eAt 850 grams and 1.9 horsepower, that case is the same one the 2023–2025 system makes. Akrapovic carried the figures across unchanged, which is itself informative: the engine is not what moved.\u003c\/p\u003e\n\u003ch2\u003eWhat changed and what did not\u003c\/h2\u003e\n\u003cp\u003eWe can say with certainty that Akrapovic issued a new part number, and that the published performance and weight figures are identical to the previous article. We cannot say from the manufacturer's data exactly which mounting point or routing changed, and we are not going to speculate about it in a product description.\u003c\/p\u003e\n\u003cp\u003eIf you are working on a build and need to know whether a 2025 system can be adapted, ask us and we will put the question to Akrapovic rather than guess.\u003c\/p\u003e\n\u003ch2\u003eTitanium and the first season\u003c\/h2\u003e\n\u003cp\u003eA new titanium system will change colour where it runs hottest within the first few hours — bronze near the head, blue further down. That is the metal annealing, it is expected, and it is not a fault. Cleaning it off with an abrasive removes the oxide layer that protects the surface.\u003c\/p\u003e\n\u003ch2\u003eNot for the road\u003c\/h2\u003e\n\u003cp\u003eClosed course competition only, and a 2026 YZ450F has no road registration in any case. The system carries no EC or ECE approval.\u003c\/p\u003e\n\u003ch2\u003eOrdering by frame number\u003c\/h2\u003e\n\u003cp\u003eModel years overlap with calendar years in motocross: a 2026 machine is often sold in the autumn of 2025. The frame number is what settles it, and it is worth reading before ordering a system that exists for one year only.\u003c\/p\u003e\n\u003ch2\u003eArticle number\u003c\/h2\u003e\n\u003cp\u003eAkrapovic lists this system as S-Y4MET17-FDHLTA.\u003c\/p\u003e","brand":"Akrapovic","offers":[{"title":"Default Title","offer_id":53631837405450,"sku":"S-Y4MET17-FDHLTA","price":166800.0,"currency_code":"KES","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/01_ea8802e0-0c51-4df7-9d46-5cc60e1c2c09.png?v=1788618347","url":"https:\/\/inter-pace.com\/en-ke\/products\/akrapovic-evolution-line-titanium-yamaha-yz450f-2026-s-y4met17-fdhlta","provider":"Inter-Pace","version":"1.0","type":"link"}