{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"46c91d16644f","name":"Q4 Exhaust Silencer 03-06 Yamaha WR YZ 450 F - FMF 044199","sku":"06-1728.FMF.Q4","brand":"FMF Exhausts","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":2,"price":{"amount":423.77,"formatted":"£423.77"},"summary":"FMF Q4 exhaust silencer featuring high-performance quiet technology for competitive off-road use. Engineered for maximum power without excessive noise, it offers industry-leading sound reduction using precision chambers and multi-stage packing. The silencer boasts an aircraft-grade aluminium body with a stainless steel midpipe and endcap for durability and weight savings. It is lightweight at 5.9 lbs, compatible with FMF or stock OEM headers, and includes a removable screen-type spark arrestor. Maximum sound output is 96dB, with most applications operating below 93dB. This is a slip-on, single configuration silencer. Variant code is 044199. Intended for closed course use only.","attributes":[{"label":"General Product Group","value":"Exhaust Systems & Parts"},{"label":"General Product Type","value":"Silencer"},{"label":"Variant Id","value":"209193"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/06-1728_2EFMF_2EQ4/6d49edd93b99c17d.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/06-1728_2EFMF_2EQ4/6d49edd93b99c17d.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/06-1728_2EFMF_2EQ4/19e841936b709cf1.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/06-1728_2EFMF_2EQ4/57cac53538a22af8.jpg"],"description":"FMF Q4 exhaust silencer featuring high-performance quiet technology for competitive off-road use. Engineered for maximum power without excessive noise, it offers industry-leading sound reduction using precision chambers and multi-stage packing. The silencer boasts an aircraft-grade aluminium body with a stainless steel midpipe and endcap for durability and weight savings. It is lightweight at 5.9 lbs, compatible with FMF or stock OEM headers, and includes a removable screen-type spark arrestor. Maximum sound output is 96dB, with most applications operating below 93dB. This is a slip-on, single configuration silencer. Variant code is 044199. Intended for closed course use only.","descriptionMarkdown":"### FMF Q4 Exhaust Silencer\n\nEngineered for off-road enthusiasts demanding maximum power without excessive noise, the FMF Q4 exhaust silencer delivers industry-leading sound reduction. Its versatile construction allows compatibility with both OEM and FMF headers, making it a versatile, durable upgrade that excels in performance without breaching noise limitations. Includes a removable spark arrestor for safe, controlled riding.\n\n#### Key Features\n\n \n- High-performance quiet technology developed for competitive off-road use.\n \n- Maximum sound output is 96dB, with most applications outputting below 93dB.\n \n- Aircraft-grade aluminum body with stainless steel midpipe and endcap for strength and weight savings.\n \n- Lightweight at 5.9 lbs for improved handling.\n \n- Compatible with FMF or stock OEM headers for flexible installation.\n \n- Removable screen-type spark arrestor included for regulation compliance.\n\n#### Specifications\n\n \n- Type: Slip-On\n \n- Configuration: Single\n \n- Construction: Aluminum\n \n- Finish: Natural\n \n- Midpipe: Stainless Steel\n \n- Endcap: Stainless Steel\n \n- Spark Arrestor: Screen Insert (included)\n \n- Weight: 5.9 lbs\n \n- Maximum Sound Output: 96dB (most models below 93dB)\n \n- Intended Use: Closed Course Only","weightGrams":null,"fitments":[{"make":"YAMAHA","model":"WR 450F","cc":null,"notes":null,"years":"2003–2006"},{"make":"YAMAHA","model":"WRF 450","cc":null,"notes":null,"years":"2003–2006"},{"make":"YAMAHA","model":"YFZ 450","cc":null,"notes":null,"years":"2003–2005"},{"make":"YAMAHA","model":"YZ 450F","cc":null,"notes":null,"years":"2003–2005"},{"make":"YAMAHA","model":"YZF 450","cc":null,"notes":null,"years":"2003–2005"}],"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/q4-exhaust-silencer-03-06-yamaha-wr-yz-450-f-fmf-044199","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/46c91d16644f:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/46c91d16644f: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."]}}