{"product_id":"thundermax-autotune-ecm-309-606-2025-up-gen-2-m8-softail","title":"ThunderMax AutoTune ECM 309-606 — 2025-Up Gen 2 M8 Softail","description":"\u003cp\u003eStandalone ThunderMax ECM with wide-band AutoTune for compatible 2025 and later Gen 2 Milwaukee-Eight Softail models.\u003c\/p\u003e\u003cp\u003eFor a Trask turbo build, confirm your exact motorcycle and load the correct Trask turbo calibration. ECM sold separately from the turbo kit. Earlier Softails use a different ThunderMax application.\u003c\/p\u003e\u003cp\u003eUses 18 mm oxygen sensors; verify exhaust ports. Race-ready applications only. Cannot ship to California.\u003c\/p\u003e\u003cp\u003eManufacturer part: 309-606. Supplier part: 1020-4290.\u003c\/p\u003e","brand":"ThunderMax","offers":[{"title":"Default Title","offer_id":49731249275118,"sku":"1020-4290","price":1088.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0706\/4902\/0654\/files\/309-606_Clipped_2025.png?v=1791759464","url":"https:\/\/highdesertperf.com\/products\/thundermax-autotune-ecm-309-606-2025-up-gen-2-m8-softail","provider":"High Desert Performance ","version":"1.0","type":"link"}