{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"e39e18d6b0b6","name":"Factory 4.1 RCT Exhaust Silencer 19-26 Honda CRF 125 F Big Wheel - FMF 041594","sku":"06-9914.FACT.ALU","brand":"FMF Exhausts","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":2,"price":{"amount":326.05,"formatted":"£326.05"},"summary":"The FMF Racing Factory 4.1 RCT Slip-On Muffler (041594) delivers massive power gains throughout the RPM range. Engineered for optimal performance on closed courses, it is built with aerospace-grade materials and FMF Resonance Chamber Technology™. This 100% American-made exhaust minimizes overall length for improved crash resistance and mass centralization. The natural aluminum muffler, paired with a robust stainless steel midpipe and endcap, offers significant weight savings without compromising durability or power. Compatible with both OEM and FMF headers, this slip-on provides versatility. It includes a screen-type spark arrestor; a quiet insert is available separately. Features include advanced FMF Resonance Chamber Technology™ for enhanced power and torque, a shorter profile for minimized crash damage and support for Factory Forward Engineering, natural aluminum muffler with carbon end cap for lightweight durability, compatibility with FMF and OEM headers, and easy installation with Rapid Tuning System (RTS). Specifications include item ID 041594, slip-on type, single configuration, aluminum muffler material, stainless steel midpipe and endcap, natural finish, screen insert spark arrestor included, and intended for closed course use only.","attributes":[],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/06-9914_2EFACT_2EALU/88028525d649ef3d.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/06-9914_2EFACT_2EALU/88028525d649ef3d.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/06-9914_2EFACT_2EALU/85f5909cbd912bb7.jpg"],"description":"The FMF Racing Factory 4.1 RCT Slip-On Muffler (041594) delivers massive power gains throughout the RPM range. Engineered for optimal performance on closed courses, it is built with aerospace-grade materials and FMF Resonance Chamber Technology™. This 100% American-made exhaust minimizes overall length for improved crash resistance and mass centralization. The natural aluminum muffler, paired with a robust stainless steel midpipe and endcap, offers significant weight savings without compromising durability or power. Compatible with both OEM and FMF headers, this slip-on provides versatility. It includes a screen-type spark arrestor; a quiet insert is available separately. Features include advanced FMF Resonance Chamber Technology™ for enhanced power and torque, a shorter profile for minimized crash damage and support for Factory Forward Engineering, natural aluminum muffler with carbon end cap for lightweight durability, compatibility with FMF and OEM headers, and easy installation with Rapid Tuning System (RTS). Specifications include item ID 041594, slip-on type, single configuration, aluminum muffler material, stainless steel midpipe and endcap, natural finish, screen insert spark arrestor included, and intended for closed course use only.","descriptionMarkdown":"### FMF Factory 4.1 RCT Slip-On Exhaust Silencer\n\n Experience significant power gains across the entire RPM range with the FMF Racing Factory 4.1 RCT Slip-On Muffler. Engineered for optimal performance on closed courses, this exhaust system utilizes aerospace-grade materials and FMF's innovative Resonance Chamber Technology™ for superior output. Its minimized overall length enhances crash resistance and improves mass centralization, contributing to Factory Forward Engineering principles.\n\n This slip-on muffler features a natural aluminium construction, complemented by a robust stainless steel midpipe and endcap. This combination provides substantial weight savings without compromising durability or performance. The FMF Factory 4.1 RCT is designed for versatility, fitting seamlessly with both OEM and FMF headers.\n\n**Key Features:**\n\n \n- FMF Resonance Chamber Technology™: Delivers enhanced power and torque.\n \n- Optimized Length: Shorter profile improves crash resistance and supports mass centralization.\n \n- Lightweight Construction: Natural aluminium muffler with a carbon end cap offers exceptional durability and weight savings.\n \n- Header Compatibility: Works with both FMF and OEM headers for flexible installation.\n \n- Rapid Tuning System (RTS): Facilitates easy installation and tuning.\n \n- Spark Arrestor Included: Comes with a screen-type spark arrestor for regulatory compliance. A quiet insert is available separately for noise reduction.\n \n- Designed for Closed Course Use: This exhaust is intended solely for racing and closed course applications.\n\n**Specifications:**\n\n \n- Type: Slip-On Muffler\n \n- Configuration: Single\n \n- Muffler Material: Aluminium\n \n- Midpipe and Endcap Material: Stainless Steel\n \n- Finish: Natural Aluminium\n \n- Spark Arrestor: Screen insert (included)\n \n- Quiet Insert: Available separately\n \n- Intended Use: Closed course only","weightGrams":null,"fitments":[{"make":"HONDA","model":"CRF 125F","cc":null,"notes":null,"years":"2019–2026"},{"make":"HONDA","model":"CRF 125F BIG WHEEL","cc":null,"notes":null,"years":"2019–2024"}],"collections":[],"links":{"page":"https://www.2brosparts.com/products/factory-41-rct-exhaust-silencer-19-26-honda-crf-125-f-big-wheel-fmf-041594","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/e39e18d6b0b6:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/e39e18d6b0b6:1"}},"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."]}}