{"product_id":"performance-muffler-kit-fits-husqvarna-390-385","title":"Performance Muffler Kit – Fits Husqvarna 390\/385","description":"\u003cp class=\"MsoNormal\" data-rte-preserve-empty=\"true\" data-pm-slice=\"1 1 []\"\u003e\u003cstrong\u003eAerospace-Grade Performance Exhaust System for Husqvarna 390 \u0026amp; 385 \u003c\/strong\u003e\u003cbr\u003eEngineered for superior power and cooler engine temperatures, this exhaust system is precision-crafted from aerospace-grade materials built to handle the toughest conditions. Proudly made in the USA and backed by a lifetime warranty, it delivers unmatched reliability and durability.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" data-rte-preserve-empty=\"true\"\u003e\u003cstrong\u003eOutlet Direction (Facing Bar or Facing Recoil):\u003c\/strong\u003e\u003cem\u003eFacing Bar\u003c\/em\u003e means the exhaust outlet points toward the guide bar side of the saw. \u003cem\u003eFacing Recoil\u003c\/em\u003e means it points toward the pull-start side. This is strictly operator preference and has no effect on performance.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" data-rte-preserve-empty=\"true\"\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e\u003cbr\u003eHusqvarna 390 \u0026amp; 385\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" data-rte-preserve-empty=\"true\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Will not fit \u003cstrong\u003e372, 371, 365 or 362\u003c\/strong\u003e  properly. Not designed to fit clone saws. Must use factory heat shield and an OEM Base Gasket (not included).\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" data-rte-preserve-empty=\"true\"\u003e\u003cstrong\u003eIncludes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-rte-list=\"true\"\u003e\n\u003cli\u003e\n\u003cp data-rte-preserve-empty=\"true\"\u003eOne-piece muffler cover CNC machined from 6061 T6 billet aluminum\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-rte-preserve-empty=\"true\"\u003eMuffler Base CNC machined from 6061 T6 billet aluminum\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-rte-preserve-empty=\"true\"\u003eLower Support Bracket CNC machined from 6061 T6 billet aluminum\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-rte-preserve-empty=\"true\"\u003eComplete hardware kit shown\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-rte-preserve-empty=\"true\"\u003eSpark arrestor screen with aperture size compliant with USFS specifications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-rte-preserve-empty=\"true\"\u003eHigh-Temperature Gasket (between cover and base) – Made in the USA\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"MsoNormal\" data-rte-preserve-empty=\"true\"\u003e \u003c\/p\u003e\n\u003cp class=\"MsoNormal\" data-rte-preserve-empty=\"true\"\u003e\u003cstrong\u003eDyno Proven Performance\u003c\/strong\u003e\u003cbr\u003eTested on a completely stock saw with no modifications other than the muffler. Results showed a 7.3% increase in horsepower and a 7.8% increase in torque.\u003cbr\u003ePerformance gains will vary depending on the saw and the level of modification.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" data-rte-preserve-empty=\"true\"\u003e\u003cstrong\u003eInstallation Notes:\u003c\/strong\u003e\u003cbr\u003e• Replacement of the OEM exhaust port gasket is recommended (not included)\u003cbr\u003e• Designed to be used with the factory heat shield and OEM gasket\u003cbr\u003e• Post-installation tuning or recalibration is required for optimal performance\u003cbr\u003e• Use Loctite 243 thread locker on all mounting screws for secure, vibration-resistant assembly\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" data-rte-preserve-empty=\"true\"\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e\u003cbr\u003eLifetime warranty covers defects in materials and workmanship under normal use; exclusions apply for misuse, neglect, or unauthorized modifications.\u003c\/p\u003e","brand":"Undaunted Manufacturing","offers":[{"title":"Facing Bar","offer_id":51772832022839,"sku":null,"price":185.0,"currency_code":"USD","in_stock":false},{"title":"Facing Recoil","offer_id":51772832055607,"sku":null,"price":185.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/4570\/2199\/files\/IMG_7863.jpg?v=1773353451","url":"https:\/\/undauntedmfg.com\/products\/performance-muffler-kit-fits-husqvarna-390-385","provider":"Undaunted Manufacturing","version":"1.0","type":"link"}