{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"1e6a4f18208c","name":"Factory 4.1 RCT Exhaust Silencer 21-26 Honda CRF 450 R RX - FMF 041602","sku":"06-9939.FMF.FAC","brand":"FMF Exhausts","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":2,"price":{"amount":635.5,"formatted":"£635.50"},"summary":"The FMF Racing Factory 4.1 RCT Stainless Slip-On with Carbon End Cap utilizes Resonance Chamber Technology in a compact, lightweight design. It is engineered with aerospace grade materials and a precision-formed carbon end cap. This slip-on exhaust enhances power output across the RPM range and centralizes mass for improved handling. It is designed and manufactured in Southern California and delivers superior performance gains, rapid tuning capabilities, and a significant reduction in weight. Features include Resonance Chamber Technology, a shorter overall length, Factory Forward Engineering for centralized mass, aerospace grade stainless steel and natural aluminium construction, and a carbon end cap. It delivers substantial power gains, significant weight savings, and includes the Rapid Tuning System, a spark arrestor (screen insert), and a 94dB quiet insert. This product is for closed course use only. Specifications include slip-on type, single configuration, aluminium construction, natural finish, stainless steel midpipe, carbon fibre end cap, included spark arrestor, and included 94dB quiet insert. Item ID: 041602.","attributes":[{"label":"General Product Group","value":"Exhaust Systems & Parts"},{"label":"General Product Type","value":"Silencer"},{"label":"Variant Id","value":"299085"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/06-9939_2EFMF_2EFAC/bee325fd435d0a50.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/06-9939_2EFMF_2EFAC/bee325fd435d0a50.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/06-9939_2EFMF_2EFAC/6b7bdba3831f04b2.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/06-9939_2EFMF_2EFAC/f20d65ce53dc8448.jpg"],"description":"The FMF Racing Factory 4.1 RCT Stainless Slip-On with Carbon End Cap utilizes Resonance Chamber Technology in a compact, lightweight design. It is engineered with aerospace grade materials and a precision-formed carbon end cap. This slip-on exhaust enhances power output across the RPM range and centralizes mass for improved handling. It is designed and manufactured in Southern California and delivers superior performance gains, rapid tuning capabilities, and a significant reduction in weight. Features include Resonance Chamber Technology, a shorter overall length, Factory Forward Engineering for centralized mass, aerospace grade stainless steel and natural aluminium construction, and a carbon end cap. It delivers substantial power gains, significant weight savings, and includes the Rapid Tuning System, a spark arrestor (screen insert), and a 94dB quiet insert. This product is for closed course use only. Specifications include slip-on type, single configuration, aluminium construction, natural finish, stainless steel midpipe, carbon fibre end cap, included spark arrestor, and included 94dB quiet insert. Item ID: 041602.","descriptionMarkdown":"### FMF Racing Factory 4.1 RCT Exhaust Silencer with Carbon End Cap\n\nThe FMF Racing Factory 4.1 RCT Stainless Slip-On with Carbon End Cap is engineered to significantly enhance your motorcycle's performance. This exhaust system utilizes cutting-edge Resonance Chamber Technology™ within a compact and lightweight design, offering substantial power gains across the entire RPM range. Constructed with aerospace-grade materials, including natural aluminium for the canister and stainless steel for the midpipe, it is finished with a precision-formed carbon fiber end cap for a premium look and durability.\n\n**Key Features:**\n\n- Utilizes FMF Resonance Chamber Technology™ for optimized performance and sound.\n\n- Features Factory Forward Engineering, which moves the muffler forward to centralize mass and improve handling characteristics.\n\n- The shorter overall length minimises the risk of damage in the event of a crash.\n\n- Constructed from aerospace grade stainless steel and natural aluminium, complemented by a carbon fiber end cap.\n\n- Delivers significant power gains throughout the RPM range.\n\n- Offers substantial weight savings compared to stock exhaust systems.\n\n- Includes a Rapid Tuning System (RTS) for quick and easy adjustments.\n\n- Comes equipped with a removable spark arrestor (screen insert) and a 94dB quiet insert to meet sound regulations where required.\n\n- Designed and manufactured entirely in Southern California.\n\n- Intended for closed course applications only.\n\n**Specifications:**\n\n- Type: Slip-On Exhaust System\n\n- Configuration: Single Muffler\n\n- Canister Material: Aluminium\n\n- Canister Finish: Natural\n\n- Midpipe Material: Stainless Steel\n\n- End Cap Material: Carbon Fiber\n\n- Spark Arrestor: Screen insert included\n\n- Quiet Insert: 94dB insert included","weightGrams":null,"fitments":[{"make":"HONDA","model":"CRF 450R","cc":null,"notes":null,"years":"2021–2026"},{"make":"HONDA","model":"CRF 450RX","cc":null,"notes":null,"years":"2021–2026"}],"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/factory-41-rct-exhaust-silencer-21-26-honda-crf-450-r-rx-fmf-041602","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/1e6a4f18208c:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/1e6a4f18208c: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."]}}