{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"d12c23328c87","name":"Q4 Hex Exhaust Silencer 18-23 KTM Husqvarna GasGas 250 350 450 SX-F XC-F FC FX MC EX - FMF 045627","sku":"06-9907.QC4H","brand":"FMF Exhausts","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":536.69,"formatted":"£536.69"},"summary":"The FMF Q4 HEX S/A 045627 is engineered for discerning off-road riders demanding peak performance alongside minimal noise. Leveraging advanced chambered baffling and exclusive packing materials, this slip-on silencer delivers substantial power gains across the rpm range while meeting USFS and FIM World Enduro sound standards. Designed for durability and weight savings, it includes a spark arrestor as standard, making it ideal for rugged, long-distance trail use. Manufactured in the USA, this exhaust is the definitive solution for those seeking quiet, race-quality exhaust systems without compromise. Features include USFS and FIM World Enduro compliant sound levels, proprietary multistage packing material for quiet operation, power boosts throughout the full rpm range, and an integrated spark arrestor for off-road legality. It is lighter than OEM systems, improving manoeuvrability, and features robust aluminium and stainless steel construction. This is a slip-on, single-exit configuration, with a quiet insert included. Designed and manufactured in the USA. Item ID: 045627. Type: Slip-On. Configuration: Single. Construction Material: Aluminium. Finish: Natural. Midpipe Material: Stainless Steel. Endcap Material: Stainless Steel. Spark Arrestor: Screen insert (included). Quiet Insert: Included. Weight: 6.1 lbs (2.77 kg). Carb Warning: No. Closed course use only.","attributes":[{"label":"General Product Group","value":"Exhaust Systems & Parts"},{"label":"General Product Type","value":"Silencer"},{"label":"Variant Id","value":"287707"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/06-9907_2EQC4H/13a245a1eb77c5f8.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/06-9907_2EQC4H/13a245a1eb77c5f8.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/06-9907_2EQC4H/9ee63ab2841a8f8a.jpg"],"description":"The FMF Q4 HEX S/A 045627 is engineered for discerning off-road riders demanding peak performance alongside minimal noise. Leveraging advanced chambered baffling and exclusive packing materials, this slip-on silencer delivers substantial power gains across the rpm range while meeting USFS and FIM World Enduro sound standards. Designed for durability and weight savings, it includes a spark arrestor as standard, making it ideal for rugged, long-distance trail use. Manufactured in the USA, this exhaust is the definitive solution for those seeking quiet, race-quality exhaust systems without compromise. Features include USFS and FIM World Enduro compliant sound levels, proprietary multistage packing material for quiet operation, power boosts throughout the full rpm range, and an integrated spark arrestor for off-road legality. It is lighter than OEM systems, improving manoeuvrability, and features robust aluminium and stainless steel construction. This is a slip-on, single-exit configuration, with a quiet insert included. Designed and manufactured in the USA. Item ID: 045627. Type: Slip-On. Configuration: Single. Construction Material: Aluminium. Finish: Natural. Midpipe Material: Stainless Steel. Endcap Material: Stainless Steel. Spark Arrestor: Screen insert (included). Quiet Insert: Included. Weight: 6.1 lbs (2.77 kg). Carb Warning: No. Closed course use only.","descriptionMarkdown":"### FMF Q4 Hex Exhaust Silencer\n\nThe FMF Q4 HEX S/A is engineered for discerning off-road riders demanding peak performance alongside minimal noise. Leveraging advanced chambered baffling and exclusive packing materials, this slip-on silencer delivers substantial power gains across the rpm range while meeting USFS and FIM World Enduro sound standards. Designed for durability and weight savings, it includes a spark arrestor as standard, making it ideal for rugged, long-distance trail use. Manufactured in the USA, this exhaust is the definitive solution for those seeking quiet, race-quality exhaust systems without compromise.\n\n#### Key Features\n\n- USFS and FIM World Enduro compliant sound levels\n\n- Proprietary multistage packing material ensures quiet operation\n\n- Boosts power throughout the full rpm range\n\n- Integrated spark arrestor for off-road legality\n\n- Lighter than OEM systems—improves manoeuvrability\n\n- Robust aluminium and stainless steel construction\n\n- Slip-on, single-exit configuration\n\n- Quiet insert included\n\n- Designed and manufactured in the USA\n\n- Closed course use only\n\n#### Specifications\n\n- Item ID: 045627\n\n- Type: Slip-On\n\n- Configuration: Single\n\n- Construction Material: Aluminium\n\n- Finish: Natural\n\n- Midpipe Material: Stainless Steel\n\n- Endcap Material: Stainless Steel\n\n- Spark Arrestor: Screen insert (included)\n\n- Quiet Insert: Included\n\n- Weight: 6.1 lbs (2.77 kg)\n\n- Carb Warning: No","weightGrams":null,"fitments":[{"make":"GASGAS","model":"EX 250F","cc":null,"notes":null,"years":"2021–2023"},{"make":"GASGAS","model":"EX 350F","cc":null,"notes":null,"years":"2021–2023"},{"make":"GASGAS","model":"EX 450F","cc":null,"notes":null,"years":"2021–2023"},{"make":"GASGAS","model":"MC 250F","cc":null,"notes":null,"years":"2021–2023"},{"make":"GASGAS","model":"MC 350F","cc":null,"notes":null,"years":"2021–2023"},{"make":"GASGAS","model":"MC 450F","cc":null,"notes":null,"years":"2021–2023"},{"make":"HUSQVARNA","model":"FC 250","cc":null,"notes":null,"years":"2019–2022"},{"make":"HUSQVARNA","model":"FC 350","cc":null,"notes":null,"years":"2019–2022"},{"make":"HUSQVARNA","model":"FC 450","cc":null,"notes":null,"years":"2019–2022"},{"make":"HUSQVARNA","model":"FC 450 ROCKSTAR EDITION","cc":null,"notes":null,"years":"2018–2021"},{"make":"HUSQVARNA","model":"FX 350","cc":null,"notes":null,"years":"2019–2022"},{"make":"HUSQVARNA","model":"FX 450","cc":null,"notes":null,"years":"2019–2022"},{"make":"KTM","model":"250 SX-F","cc":null,"notes":null,"years":"2019–2022"},{"make":"KTM","model":"250 XC-F","cc":null,"notes":null,"years":"2019–2022"},{"make":"KTM","model":"350 SX-F","cc":null,"notes":null,"years":"2019–2022"},{"make":"KTM","model":"350 XC-F","cc":null,"notes":null,"years":"2019–2022"},{"make":"KTM","model":"350 XC-F KAILUB RUSSELL","cc":null,"notes":null,"years":"2021"},{"make":"KTM","model":"450 SX-F","cc":null,"notes":null,"years":"2019–2022"},{"make":"KTM","model":"450 SX-F FACTORY EDITION","cc":null,"notes":null,"years":"2018, 2020–2021"},{"make":"KTM","model":"450 XC-F","cc":null,"notes":null,"years":"2019–2022"}],"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-18-23-ktm-husqvarna-gasgas-250-350-450-sx-f-xc-f-fc-fx-m","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/d12c23328c87:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/d12c23328c87:1"}},"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."]}}