{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"d0a448506e33","name":"END OF LINE Q4 HEX EXHAUST SILENCER 2017-2020 HONDA CRF 450 R RX RWE - FMF 041558","sku":"06-1981.FMF.Q4H","brand":"FMF Exhausts","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":3,"price":{"amount":325.97,"formatted":"£325.97"},"summary":"END OF LINE Q4 Hex Exhaust Silencer. Slip-on quiet-performance muffler engineered for off-road endurance, employing internal chambers, baffles and multi-stage packing to reduce sound while maintaining broad power gains. Includes a USFS-compliant spark arrestor and is supplied with a quiet insert. Features reduced output sound compliant with USFS and FIM World Enduro sound regulations, power gains across the rpm range, a spark arrestor, lighter than stock construction, and rugged construction for off-road durability. Manufactured in the USA. Notice: Closed course use only. Use with matching FMF header #041555 only. Specifications: Type: Slip-on, Configuration: Single, Canister construction: Aluminium, Finish: Natural, Mid-pipe: Stainless steel, Endcap: Stainless steel, Spark arrestor: Screen insert (included), Quiet insert: Included, CARB warning: No. Cross-Reference OEM Part Numbers: FMF 041558 (Q4 Hex slip-on), FMF header: 041555 (required for fitment).","attributes":[{"label":"General Product Group","value":"Exhaust Systems & Parts"},{"label":"General Product Type","value":"Silencer"},{"label":"Variant Id","value":"209593"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/06-1981_2EFMF_2EQ4H/cab9380e28d13449.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/06-1981_2EFMF_2EQ4H/cab9380e28d13449.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/06-1981_2EFMF_2EQ4H/28d2565792091c86.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/06-1981_2EFMF_2EQ4H/b0920bb0c77668c7.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/06-1981_2EFMF_2EQ4H/7c5ce938aefdd05d.jpg"],"description":"END OF LINE Q4 Hex Exhaust Silencer. Slip-on quiet-performance muffler engineered for off-road endurance, employing internal chambers, baffles and multi-stage packing to reduce sound while maintaining broad power gains. Includes a USFS-compliant spark arrestor and is supplied with a quiet insert. Features reduced output sound compliant with USFS and FIM World Enduro sound regulations, power gains across the rpm range, a spark arrestor, lighter than stock construction, and rugged construction for off-road durability. Manufactured in the USA. Notice: Closed course use only. Use with matching FMF header #041555 only. Specifications: Type: Slip-on, Configuration: Single, Canister construction: Aluminium, Finish: Natural, Mid-pipe: Stainless steel, Endcap: Stainless steel, Spark arrestor: Screen insert (included), Quiet insert: Included, CARB warning: No. Cross-Reference OEM Part Numbers: FMF 041558 (Q4 Hex slip-on), FMF header: 041555 (required for fitment).","descriptionMarkdown":"### FMF Q4 Hex Exhaust Silencer - Slip-On Quiet Performance Muffler\n\nEnhance your off-road riding experience with the FMF Q4 Hex Exhaust Silencer. This slip-on muffler is engineered for endurance riding, utilizing internal chambers, baffles, and multi-stage packing to effectively reduce sound output while delivering significant power gains across the entire RPM range. Designed for rugged off-road durability, it is lighter than stock and manufactured in the USA.\n\n**Key Features:**\n\n\t\n- Reduced sound output, compliant with USFS and FIM World Enduro regulations.\n\t\n- Achieve power gains throughout the RPM range.\n\t\n- Integrated USFS-compliant spark arrestor included.\n\t\n- Lighter than the original stock muffler.\n\t\n- Robust construction built for demanding off-road conditions.\n\t\n- Quiet insert is included for further sound reduction.\n\t\n- Proudly manufactured in the USA.\n\t\n- Note: For closed course use only.\n\t\n- Fitment Note: Must be used with matching FMF header #041555.\n\n**Specifications:**\n\n\t\n- Type: Slip-on\n\t\n- Configuration: Single\n\t\n- Canister Material: Aluminium\n\t\n- Canister Finish: Natural\n\t\n- Mid-pipe Material: Stainless steel\n\t\n- Endcap Material: Stainless steel\n\t\n- Spark Arrestor Type: Screen insert (included)\n\t\n- Quiet Insert: Included","weightGrams":null,"fitments":[{"make":"HONDA","model":"CRF 450R","cc":null,"notes":null,"years":"2017–2020"},{"make":"HONDA","model":"CRF 450RX","cc":null,"notes":null,"years":"2017–2020"},{"make":"HONDA","model":"CRF RWE 450","cc":null,"notes":null,"years":"2019"}],"collections":[{"name":"Exhaust Systems & Parts","url":"https://www.2brosparts.com/api/agent/collection/GB/exhaust-systems-parts"},{"name":"Silencer","url":"https://www.2brosparts.com/api/agent/collection/GB/silencer"}],"links":{"page":"https://www.2brosparts.com/products/end-of-line-q4-hex-exhaust-silencer-2017-2020-honda-crf-450-r-rx-rwe-fmf-041558","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/d0a448506e33:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/d0a448506e33:1"}},"market":{"country":"GB","countryName":"United Kingdom","locale":"en-gb","currency":"GBP","exchangeRateFromGbp":1,"pricesIncludeUkVat":true,"checkoutTax":null,"delivery":[{"name":"Standard","description":"Orders £15.00–£59.99 · 2–4 business days","carrier":null,"estimatedDays":"2–4 business days","price":{"amount":4.99,"formatted":"£4.99"},"free":false,"minimumOrder":{"amount":0,"formatted":"£0.00","gbp":0},"weightGrams":null},{"name":"Standard","description":"Orders £60.00 and up · 2–4 business days","carrier":null,"estimatedDays":"2–4 business days","price":{"amount":0,"formatted":"£0.00"},"free":true,"minimumOrder":{"amount":60,"formatted":"£60.00","gbp":60},"weightGrams":null}],"storeUrl":"https://www.2brosparts.com"},"navigate":{"start":"https://www.2brosparts.com/api/agent","search":"https://www.2brosparts.com/api/agent/search/GB/{words+joined+with+plus}"},"howToBuy":{"summary":"Build a basket for the shopper and give them one checkout link. Every URL is a plain path (no query string) and a GET. Nothing is stored between calls.","checkoutLinkFormat":"https://www.2brosparts.com/api/agent/checkout/GB/{basketKey}:{quantity},{basketKey}:{quantity}","steps":["1. Find products: follow links in these responses, or fetch https://www.2brosparts.com/api/agent/search/GB/{words+joined+with+plus} (e.g. https://www.2brosparts.com/api/agent/search/GB/brake+pads). Every product has a basketKey.","2. Optional check: https://www.2brosparts.com/api/agent/basket/GB/{basketKey}:{quantity},{basketKey}:{quantity} returns stock, totals per delivery option and the checkout link.","3. Give the shopper the checkout link. Opening it fills their basket with exactly these items (replacing what was there) and opens checkout for United Kingdom. They pay on 2brosparts.com through Stripe."],"noFetchNeeded":"You can write the checkout link yourself from basketKeys and quantities; nothing has to be fetched first. Each product also has links.buyOneNow, a ready link for one unit.","stateless":"Nothing is saved on our side. The items part of the URL is the whole basket: to change it, write the link again with the new list.","itemsFormat":"basketKey:quantity pairs joined by commas, e.g. 04f24aad4d68:2,7c1e9a0b3f2d:1. Quantity defaults to 1. Up to 50 products, 100 each.","country":"GB is the shopper's delivery country. Swap it for theirs (US, DE, FR…) in any URL; currency, tax and delivery follow it.","tips":["Put everything the shopper wants in one link.","Optionally add your name as a last path segment on checkout links (…/checkout/GB/<items>/claude) so the sale is credited to you.","The checkout link is for the shopper's browser. Do not open it yourself.","Signed-in trade account holders see their trade prices at checkout."]}}