{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"6b18a189c636","name":"Factory 4.1 RCT Exhaust Silencer 21-24 Kawasaki KX 250 F X - FMF 042394","sku":"06-9950.FMF.FAC","brand":"FMF Exhausts","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":2,"price":{"amount":564.92,"formatted":"£564.92"},"summary":"The FMF Racing Factory 4.1 RCT Stainless Slip-On with Carbon End Cap is engineered for enthusiasts seeking leading-edge performance and durability. Featuring innovative Resonance Chamber Technology™, this slip-on exhaust delivers increased power across the RPM range while offering substantial weight reduction. The advanced Factory Forward Engineering positions the muffler closer to the powerplant for enhanced mass centralisation and improved balance, all in a robust package constructed from aerospace-grade materials at FMF's California facility. Designed exclusively for closed course competition, it incorporates FMF Resonance Chamber Technology™ for refined power delivery. Its shorter overall length enhances durability and minimises crash susceptibility. Factory Forward Engineering promotes mass centralisation by positioning the muffler nearer the engine. A Rapid Tuning System RTS allows for quick adjustments. Manufactured using aerospace-grade aluminium and stainless steel, with a carbon end cap. Includes a screen-type spark arrestor and 94dB quiet insert. Offers significant weight savings to improve handling and responsiveness. Type: Slip-On. Configuration: Single. Construction: Aluminium. Finish: Natural. Midpipe: Stainless Steel. End Cap: Carbon. Spark Arrestor: Screen Insert (included). Quiet Insert: 94dB (included). Weight: 7.5 lbs.","attributes":[{"label":"General Product Group","value":"Exhaust Systems & Parts"},{"label":"General Product Type","value":"Silencer"},{"label":"Variant Id","value":"299097"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/06-9950_2EFMF_2EFAC/1d8e1d1e02d45b18.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/06-9950_2EFMF_2EFAC/1d8e1d1e02d45b18.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/06-9950_2EFMF_2EFAC/75f4e0ce6b24b9fe.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/06-9950_2EFMF_2EFAC/07e16e6316a48ccd.jpg"],"description":"The FMF Racing Factory 4.1 RCT Stainless Slip-On with Carbon End Cap is engineered for enthusiasts seeking leading-edge performance and durability. Featuring innovative Resonance Chamber Technology™, this slip-on exhaust delivers increased power across the RPM range while offering substantial weight reduction. The advanced Factory Forward Engineering positions the muffler closer to the powerplant for enhanced mass centralisation and improved balance, all in a robust package constructed from aerospace-grade materials at FMF's California facility. Designed exclusively for closed course competition, it incorporates FMF Resonance Chamber Technology™ for refined power delivery. Its shorter overall length enhances durability and minimises crash susceptibility. Factory Forward Engineering promotes mass centralisation by positioning the muffler nearer the engine. A Rapid Tuning System RTS allows for quick adjustments. Manufactured using aerospace-grade aluminium and stainless steel, with a carbon end cap. Includes a screen-type spark arrestor and 94dB quiet insert. Offers significant weight savings to improve handling and responsiveness. Type: Slip-On. Configuration: Single. Construction: Aluminium. Finish: Natural. Midpipe: Stainless Steel. End Cap: Carbon. Spark Arrestor: Screen Insert (included). Quiet Insert: 94dB (included). Weight: 7.5 lbs.","descriptionMarkdown":"### FMF Racing Factory 4.1 RCT Slip-On Exhaust System with Carbon End Cap\n\nElevate your motorcycle's performance with the FMF Racing Factory 4.1 RCT Stainless Slip-On. Engineered for closed-course competition, this exhaust system integrates FMF's groundbreaking Resonance Chamber Technology™ to deliver enhanced power across the entire RPM range. The innovative Factory Forward Engineering positions the muffler closer to the engine, improving mass centralization and overall bike balance for a more responsive and agile ride. Constructed from aerospace-grade aluminium and stainless steel with a striking carbon fibre end cap, this system offers a significant reduction in weight, contributing to better handling and reduced rider fatigue.\n\n**Key Features:**\n\n- Designed for closed-course competition use.\n\n- Features FMF Resonance Chamber Technology™ for optimized power delivery.\n\n- Shorter muffler design increases durability and reduces susceptibility to damage.\n\n- Factory Forward Engineering centralizes mass by moving the muffler closer to the engine.\n\n- Includes a Rapid Tuning System (RTS) for easy performance adjustments.\n\n- Constructed with aerospace-grade aluminium and stainless steel for superior strength and light weight.\n\n- Finished with a premium carbon fibre end cap.\n\n- Comes with a screen-type spark arrestor and a 94dB quiet insert for sound management.\n\n- Offers substantial weight savings over stock systems.\n\n**Specifications:**\n\n- Type: Slip-On Exhaust\n\n- Configuration: Single Muffler\n\n- Muffler Construction: Aerospace-grade Aluminium\n\n- Muffler Finish: Natural\n\n- Mid-Pipe Material: Stainless Steel\n\n- End Cap Material: Carbon Fibre\n\n- Included Accessories: Screen Spark Arrestor, 94dB Quiet Insert\n\n- Approximate Weight: 7.5 lbs","weightGrams":null,"fitments":[{"make":"KAWASAKI","model":"KX 250F","cc":null,"notes":null,"years":"2021–2024"},{"make":"KAWASAKI","model":"KX 250X","cc":null,"notes":null,"years":"2021–2024"},{"make":"KAWASAKI","model":"KXF 250","cc":null,"notes":null,"years":"2021"}],"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-21-24-kawasaki-kx-250-f-x-fmf-042394","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/6b18a189c636:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/6b18a189c636:1"}},"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."]}}