{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"4ccb7048e80a","name":"Q4 Hex Exhaust Silencer 15-19 KTM Husqvarna 250 350 450 500 - FMF 045590","sku":"06-1780.FMF.Q4H","brand":"FMF Exhausts","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":3,"price":{"amount":423.77,"formatted":"£423.77"},"summary":"The FMF Q4 HEX S/A exhaust offers advanced quiet performance technology for off-road motorcycles. It features internal baffles and multistage packing for power gains across the rpm range, while complying with USFS and FIM sound requirements. This slip-on exhaust is lighter than OEM, built for durability, and includes a spark arrestor. Specifications include aluminum construction, a natural finish, stainless steel midpipe and endcap, a screen insert spark arrestor, and a quiet insert. The item weighs 5.1 lbs. Closed course use only.","attributes":[{"label":"General Product Group","value":"Exhaust Systems & Parts"},{"label":"General Product Type","value":"Silencer"},{"label":"Variant Id","value":"209389"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/06-1780_2EFMF_2EQ4H/fdeed7d6d93fa883.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/06-1780_2EFMF_2EQ4H/fdeed7d6d93fa883.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/06-1780_2EFMF_2EQ4H/ebf2c6bd6ef77334.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/06-1780_2EFMF_2EQ4H/e633d4343ed47b44.jpg"],"description":"The FMF Q4 HEX S/A exhaust offers advanced quiet performance technology for off-road motorcycles. It features internal baffles and multistage packing for power gains across the rpm range, while complying with USFS and FIM sound requirements. This slip-on exhaust is lighter than OEM, built for durability, and includes a spark arrestor. Specifications include aluminum construction, a natural finish, stainless steel midpipe and endcap, a screen insert spark arrestor, and a quiet insert. The item weighs 5.1 lbs. Closed course use only.","descriptionMarkdown":"### FMF Q4 Hex Exhaust Silencer\n\nThe FMF Q4 HEX S/A exhaust system utilizes advanced chambering, internal baffling, and exclusive multistage packing to deliver significant power gains across the entire RPM range. This slip-on exhaust is engineered to meet stringent USFS and FIM sound requirements, making it a compliant option for off-road riding. Its design also leads to a reduction in overall weight and ensures robust durability for demanding conditions.\n\n**Key Features:**\n\n- Exceptional quiet performance combined with notable power improvements.\n\n- Compliant with USFS and FIM World Enduro sound regulations.\n\n- Includes an integrated spark arrestor for enhanced safety.\n\n- Significantly lighter than the original equipment manufacturer (OEM) exhaust systems.\n\n- Built for maximum endurance in off-road environments.\n\n- Proudly made in the USA.\n\n- Notice: Closed Course Use Only\n\n**Specifications:**\n\n- Type: Slip-On\n\n- Configuration: Single\n\n- Construction Material: Aluminum\n\n- Finish: Natural\n\n- Midpipe Material: Stainless Steel\n\n- Endcap Material: Stainless Steel\n\n- Spark Arrestor Type: Screen insert (included)\n\n- Quiet Insert: Included\n\n- Weight: 5.1 lbs","weightGrams":null,"fitments":[{"make":"HUSQVARNA","model":"FC 250","cc":null,"notes":null,"years":"2016–2018"},{"make":"HUSQVARNA","model":"FC 350","cc":null,"notes":null,"years":"2016–2018"},{"make":"HUSQVARNA","model":"FC 450","cc":null,"notes":null,"years":"2016–2018"},{"make":"HUSQVARNA","model":"FE 250","cc":null,"notes":null,"years":"2017–2019"},{"make":"HUSQVARNA","model":"FE 350","cc":null,"notes":null,"years":"2017–2019"},{"make":"HUSQVARNA","model":"FE 450","cc":null,"notes":null,"years":"2017–2019"},{"make":"HUSQVARNA","model":"FE 501","cc":null,"notes":null,"years":"2017–2019"},{"make":"HUSQVARNA","model":"FX 350","cc":null,"notes":null,"years":"2017–2018"},{"make":"HUSQVARNA","model":"FX 450","cc":null,"notes":null,"years":"2017–2018"},{"make":"KTM","model":"250 EXC-F","cc":null,"notes":null,"years":"2017–2019"},{"make":"KTM","model":"250 SX F FACTORY EDITION","cc":null,"notes":null,"years":"2015–2017"},{"make":"KTM","model":"250 SX-F","cc":null,"notes":null,"years":"2015–2018"},{"make":"KTM","model":"250 SX-F Factory Edition","cc":null,"notes":null,"years":"2015"},{"make":"KTM","model":"250 SX-F FACTORY EDITION","cc":null,"notes":null,"years":"2016–2017"},{"make":"KTM","model":"250 XC-F","cc":null,"notes":null,"years":"2016–2018"},{"make":"KTM","model":"350 EXC-F","cc":null,"notes":null,"years":"2017–2019"},{"make":"KTM","model":"350 SX-F","cc":null,"notes":null,"years":"2016–2018"},{"make":"KTM","model":"350 XC-F","cc":null,"notes":null,"years":"2016–2018"},{"make":"KTM","model":"450 EXC-F","cc":null,"notes":null,"years":"2018–2019"},{"make":"KTM","model":"450 EXC-F SIX DAYS","cc":null,"notes":null,"years":"2017–2019"},{"make":"KTM","model":"450 SX F FACTORY EDITION","cc":null,"notes":null,"years":"2015–2017"},{"make":"KTM","model":"450 SX-F","cc":null,"notes":null,"years":"2015–2018"},{"make":"KTM","model":"450 SX-F Factory Edition","cc":null,"notes":null,"years":"2015"},{"make":"KTM","model":"450 SX-F FACTORY EDITION","cc":null,"notes":null,"years":"2016–2017"},{"make":"KTM","model":"450 XC-F","cc":null,"notes":null,"years":"2016–2018"},{"make":"KTM","model":"500 EXC-F","cc":null,"notes":null,"years":"2017–2019"}],"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-15-19-ktm-husqvarna-250-350-450-500-fmf-045590","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/4ccb7048e80a:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/4ccb7048e80a: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."]}}