{"product_id":"ktm-fmf-factory-fatty-expansion-chamber-a44005907001","title":"KTM FMF Factory Fatty expansion chamber A44005907001","description":"The FMF Factory Fatty expansion chamber delivers aggressive power gains and a signature aggressive tone for KTM dirt bikes. Engineered with FMF's proven tuning technology, this chamber maximizes mid-range and top-end horsepower while maintaining reliability. The durable steel construction withstands high-temperature exhaust flow, and the compact design fits tight engine bays without compromising ground clearance. Direct bolt-on installation requires no modifications. Ideal for riders seeking noticeable performance improvement and that unmistakable FMF sound. Genuine OEM-quality part backed by FMF's reputation for excellence in powersports exhaust systems.","brand":"FMF","offers":[{"title":"Default Title","offer_id":55064521572671,"sku":"A44005907001","price":329.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0991\/1006\/0351\/files\/PHO_NMON_A44005907001-FMF-factory-fatty__SALL__AWSG__V1.jpg?v=1786033267","url":"https:\/\/dtmpowersports.store\/products\/ktm-fmf-factory-fatty-expansion-chamber-a44005907001","provider":"DTM Powersports","version":"1.0","type":"link"}