{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"28a9a9521a38","name":"Q4 Hex Exhaust Silencer 20-23 GasGas Husqvarna KTM 250 350 450 500 501 - FMF 045646","sku":"06-9924.FMF.Q4","brand":"FMF Exhausts","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":423.77,"formatted":"£423.77"},"summary":"The FMF Q4 HEX S/A 045646 represents the forefront of quiet exhaust technology for off-road motorcycles, engineered to deliver top-tier performance while reducing sound output. This evolution in exhaust design features precision chambers, advanced baffles and FMF’s proprietary multistage packing material, balancing improved power across the RPM range with compliance to stringent USFS and FIM World Enduro sound regulations. Its durable aluminium and stainless steel construction ensures long-lasting reliability and considerable weight savings over stock systems, all while including a spark arrestor for safe, versatile riding. Features include industry-leading, quiet performance technology for off-road bikes, intricate internal design for maximum sound control and power gains, meets USFS and FIM World Enduro sound standards, spark arrestor (screen insert) included, noticeably lighter than OEM exhaust, durable aluminium canister, stainless steel end cap and midpipe, designed and manufactured exclusively in the USA, supplied with removable quiet insert, dedicated quiet system from a US manufacturer. Note: Closed Course Use Only. Specifications: Item ID: 045646, Type: Slip-On, Configuration: Single, Construction: Aluminium, Finish: Natural, Midpipe: Stainless Steel, Endcap: Stainless Steel, Spark Arrestor: Included (screen insert), Quiet Insert: Included, Weight: 5.1 lbs (2.31 kg), Carb Warning: No.","attributes":[{"label":"General Product Group","value":"Exhaust Systems & Parts"},{"label":"General Product Type","value":"Silencer"},{"label":"Variant Id","value":"291479"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/06-9924_2EFMF_2EQ4/c47775fe39403c88.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/06-9924_2EFMF_2EQ4/c47775fe39403c88.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/06-9924_2EFMF_2EQ4/095fbf4c5355dc59.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/06-9924_2EFMF_2EQ4/bd038da768e3937e.jpg"],"description":"The FMF Q4 HEX S/A 045646 represents the forefront of quiet exhaust technology for off-road motorcycles, engineered to deliver top-tier performance while reducing sound output. This evolution in exhaust design features precision chambers, advanced baffles and FMF’s proprietary multistage packing material, balancing improved power across the RPM range with compliance to stringent USFS and FIM World Enduro sound regulations. Its durable aluminium and stainless steel construction ensures long-lasting reliability and considerable weight savings over stock systems, all while including a spark arrestor for safe, versatile riding. Features include industry-leading, quiet performance technology for off-road bikes, intricate internal design for maximum sound control and power gains, meets USFS and FIM World Enduro sound standards, spark arrestor (screen insert) included, noticeably lighter than OEM exhaust, durable aluminium canister, stainless steel end cap and midpipe, designed and manufactured exclusively in the USA, supplied with removable quiet insert, dedicated quiet system from a US manufacturer. Note: Closed Course Use Only. Specifications: Item ID: 045646, Type: Slip-On, Configuration: Single, Construction: Aluminium, Finish: Natural, Midpipe: Stainless Steel, Endcap: Stainless Steel, Spark Arrestor: Included (screen insert), Quiet Insert: Included, Weight: 5.1 lbs (2.31 kg), Carb Warning: No.","descriptionMarkdown":"### FMF Q4 Hex Exhaust Silencer\n\nThe FMF Q4 HEX S/A represents the forefront of quiet exhaust technology for off-road motorcycles. It is engineered to deliver top-tier performance while reducing sound output. This evolution in exhaust design features precision chambers, advanced baffles, and FMF’s proprietary multistage packing material. It balances improved power across the RPM range with compliance to stringent USFS and FIM World Enduro sound regulations. Its durable aluminum and stainless steel construction ensures long-lasting reliability and considerable weight savings over stock systems. It includes a spark arrestor for safe, versatile riding.\n\n#### Key Features\n\n- Industry-leading, quiet performance technology for off-road bikes.\n\n- Intricate internal design for maximum sound control and power gains.\n\n- Meets USFS and FIM World Enduro sound standards.\n\n- Spark arrestor (screen insert) included.\n\n- Noticeably lighter than OEM exhaust.\n\n- Durable aluminum canister, stainless steel end cap and midpipe.\n\n- Designed and manufactured exclusively in the USA.\n\n- Supplied with removable quiet insert.\n\n- Dedicated quiet system from a US manufacturer.\n\n- Notice: Closed Course Use Only.\n\n#### Specifications\n\n- Type: Slip-On\n\n- Configuration: Single\n\n- Construction: Aluminum canister\n\n- Midpipe Material: Stainless Steel\n\n- Endcap Material: Stainless Steel\n\n- Spark Arrestor: Included (screen insert)\n\n- Quiet Insert: Included\n\n- Weight: 5.1 lbs (2.31 kg)","weightGrams":null,"fitments":[{"make":"GASGAS","model":"EC 250F","cc":null,"notes":null,"years":"2021"},{"make":"GASGAS","model":"EC 350F","cc":null,"notes":null,"years":"2021"},{"make":"HUSQVARNA","model":"FE 250","cc":null,"notes":null,"years":"2020–2021"},{"make":"HUSQVARNA","model":"FE 350","cc":null,"notes":null,"years":"2020–2023"},{"make":"HUSQVARNA","model":"FE 350 ROCKSTAR EDITION","cc":null,"notes":null,"years":"2021"},{"make":"HUSQVARNA","model":"FE 450","cc":null,"notes":null,"years":"2020–2021, 2023"},{"make":"HUSQVARNA","model":"FE 501","cc":null,"notes":null,"years":"2020–2023"},{"make":"KTM","model":"250 EXC-F","cc":null,"notes":null,"years":"2020–2021"},{"make":"KTM","model":"350 EXC-F","cc":null,"notes":null,"years":"2020–2021"},{"make":"KTM","model":"350 XCF-W","cc":null,"notes":null,"years":"2020–2022"},{"make":"KTM","model":"450 EXC-F","cc":null,"notes":null,"years":"2020–2021"},{"make":"KTM","model":"450 XCF-W","cc":null,"notes":null,"years":"2020–2021, 2023"},{"make":"KTM","model":"500 EXC-F","cc":null,"notes":null,"years":"2020–2021"},{"make":"KTM","model":"500 XCF-W","cc":null,"notes":null,"years":"2020–2023"}],"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-hex-exhaust-silencer-20-23-gasgas-husqvarna-ktm-250-350-450-500-501-fmf-04564","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/28a9a9521a38:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/28a9a9521a38:1"}},"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."]}}