{"product_id":"akrapovic-evolution-line-titanium-honda-crf450r-2017-s-h4met15-ciqta","title":"Akrapovic Evolution Line Titanium Honda CRF450R (2017-2020) – S-H4MET15-CIQTA","description":"\u003cp\u003eTitanium headers, not steel. That is what separates the Evolution Line from the Racing Line for this generation of CRF450R, and it is where the price difference and the weight difference both come from.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eTitanium headers as well as a titanium muffler\u003c\/li\u003e\n\u003cli\u003e3.91 kg fitted where Honda's own system weighs 4.43\u003c\/li\u003e\n\u003cli\u003eOutput reaches 55.3 PS from a standard 53, taken at 9,950 rpm\u003c\/li\u003e\n\u003cli\u003eTorque up by 2.6 Nm at 6,000 rpm\u003c\/li\u003e\n\u003cli\u003eUsed by race teams\u003c\/li\u003e\n\u003cli\u003eRemovable noise insert supplied\u003c\/li\u003e\n\u003cli\u003eClosed course competition use only\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eEvolution or Racing\u003c\/h2\u003e\n\u003cp\u003eAkrapovic builds both lines for the 2017 to 2020 CRF450R, and the published power and torque figures are identical. The difference is entirely in the headers: titanium here, stainless steel on the Racing Line S-H4MR16-CIQTA.\u003c\/p\u003e\n\u003cp\u003eTitanium is lighter and costs more. Steel survives being landed on. For a rider who bins the bike regularly the Racing Line is the more sensible purchase, and we say so on both pages.\u003c\/p\u003e\n\u003ch2\u003eHalf a Kilogram\u003c\/h2\u003e\n\u003cp\u003eThe saving here is 0.52 kg — modest next to what the road systems in this catalogue achieve, and the reason is that Honda's original was never a Euro-compliance box. A motocross bike carries no catalytic converter and no noise-limit hardware beyond what the FIM demands, so there is little excess to remove.\u003c\/p\u003e\n\u003cp\u003eWhat titanium buys on a competition bike is not weight so much as the ability to make a thin-walled part that still survives the season.\u003c\/p\u003e\n\u003ch2\u003eFour Model Years\u003c\/h2\u003e\n\u003cp\u003eHonda kept this CRF450R generation from 2017 to 2020 before the 2021 redesign. One system covers all four years, including the cross-country CRF450RX with its larger tank and kickstand.\u003c\/p\u003e\n\u003ch2\u003eFIM Noise Limits\u003c\/h2\u003e\n\u003cp\u003eCompetition sound rules shape a modern motocross exhaust more than power targets do. This system meets the FIM limits with the insert fitted, which is the condition under which a bike passes scrutineering at a regulated meeting.\u003c\/p\u003e\n\u003ch2\u003eAlso for the RX\u003c\/h2\u003e\n\u003cp\u003eHonda's CRF450RX is the cross-country version — larger tank, kickstand, softer suspension and a wider ratio gearbox. It shares the frame and the exhaust route with the R, so this system fits both across all four years.\u003c\/p\u003e\n\u003ch2\u003eTitanium Headers Are the Difference\u003c\/h2\u003e\n\u003cp\u003eSteel headers weigh more but shrug off a fall. Titanium headers save half a kilogram and mark or crack where steel would only bend. Neither is wrong — the choice depends on how often the motorcycle ends up on its side.\u003c\/p\u003e\n\u003ch2\u003eHalf a Kilogram, and What It Costs\u003c\/h2\u003e\n\u003cp\u003e0.52 kg is the entire weight advantage over the Racing Line for the same machine, and it accounts for most of the price difference between the two. On a competition bike where every gram is argued over that is a defensible trade; on a practice machine it is harder to justify.\u003c\/p\u003e\n\u003cp\u003eBoth pages say the same thing, because it is the same decision seen from either side.\u003c\/p\u003e\n\u003ch2\u003eRoad Approval\u003c\/h2\u003e\n\u003cp\u003eNone. For closed course competition use only. Not intended for street use.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePart number: S-H4MET15-CIQTA\u003c\/li\u003e\n\u003cli\u003eEAN: 3831113543392\u003c\/li\u003e\n\u003cli\u003eBikes covered: Honda CRF450R and CRF450RX, 2017 to 2020\u003c\/li\u003e\n\u003cli\u003eLine: Evolution Line (Titanium), complete system\u003c\/li\u003e\n\u003cli\u003eMade of: ultra-lightweight titanium, headers included\u003c\/li\u003e\n\u003cli\u003eWeight: 3.91 kg fitted, 4.43 kg standard\u003c\/li\u003e\n\u003cli\u003ePower: up to 55.3 PS from 53 standard, taken at 9,950 rpm\u003c\/li\u003e\n\u003cli\u003eTorque: up to 45.3 Nm from 44.9 standard, taken at 6,000 rpm\u003c\/li\u003e\n\u003cli\u003eInsert: supplied, removable\u003c\/li\u003e\n\u003cli\u003eWorkshop time: about an hour\u003c\/li\u003e\n\u003cli\u003eApproval: none; 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":53628634267914,"sku":"S-H4MET15-CIQTA","price":1044.75,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/01_69cec9ec-50b1-49f1-9a62-cf367f7703cc.png?v=1788545605","url":"https:\/\/inter-pace.com\/en-xk\/products\/akrapovic-evolution-line-titanium-honda-crf450r-2017-s-h4met15-ciqta","provider":"Inter-Pace","version":"1.0","type":"link"}