{"product_id":"rotax-max-exhaust-silencer-assembly-senior-junior","title":"4. 273220 Rotax Max Exhaust Silencer Assembly – Senior \u0026 Junior","description":"\u003cp\u003eThe \u003cstrong\u003eRotax Max Exhaust Silencer Assembly\u003c\/strong\u003e (R.273220) is the OEM complete silencer unit for the Rotax 125 Senior MAX EVO and Junior MAX EVO engines, incorporating Positions 4 through 6 — the silencer outer can, the isolating mat (R.297982), and the perforated inner tube (R.273210). The silencer reduces exhaust noise to within Rotax Challenge series sound level limits while maintaining the backpressure characteristics that the tuned expansion chamber pipe requires for optimal power delivery. A dented, holed, or poorly packed silencer affects both noise compliance and engine performance.\u003c\/p\u003e\n\u003cp\u003eFits: \u003cstrong\u003eRotax 125 Senior MAX EVO, Junior MAX EVO\u003c\/strong\u003e. Connects to the expansion chamber pipe (R.273200) via the exhaust gasket (R.450360) and secured with stainless springs (R.938798). For the complete system, see R.273078.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e R.273220\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Silencer outer can, isolating mat (R.297982), perforated tube (R.273210) — Pos. 4–6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Rotax 125 Senior MAX EVO, Junior MAX EVO\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCMC Karting stocks the complete silencer assembly and all individual silencer components for the Rotax 125 MAX EVO.\u003c\/p\u003e","brand":"KSG\/Karting Solutions Group","offers":[{"title":"Default Title","offer_id":48139650728157,"sku":"R.273220","price":220.25,"currency_code":"USD","in_stock":true}],"url":"https:\/\/cmckarting.com\/products\/rotax-max-exhaust-silencer-assembly-senior-junior","provider":"CMC Karting","version":"1.0","type":"link"}