{"product_id":"custom-s58-tuning-bmw-f97-f98-g80-g82-x3m-x4m-m3-m4-competition-tune","title":"Custom S58 Tuning - BMW F97 F98 G80 G82 X3M X4M M3 M4 COMPETITION TUNE","description":"\u003ch2\u003eCustom S58 Tune for BMW G80 M3 | G82 M4 | G87 M2 | F97 X3M | F98 X4M\u003c\/h2\u003e\n\u003cp\u003eThe bootmod3 S58 tune is purpose-built for BMW's most advanced inline-six platform. Whether you're running a stock G80 M3 or a staged G82 M4 Competition, our ECU software unlocks the full performance potential of the S58 engine with unmatched precision, datalogging capability, and ongoing map support.\u003c\/p\u003e\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLifetime license tied to your vehicle's ECU\u003c\/li\u003e\n\u003cli\u003eAccess to bootmod3 Off-The-Shelf (OTS) maps — Stage 1, Stage 2, and fuel-specific variants (93oct, 91oct, E30, E85)\u003c\/li\u003e\n\u003cli\u003eCustom tune support via remote or in-person dyno session (custom tune purchased separately)\u003c\/li\u003e\n\u003cli\u003eAccess to the bootmod3 iOS and Android app for flashing, logging, and live data monitoring\u003c\/li\u003e\n\u003cli\u003eOngoing map updates and platform improvements included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatible Platforms \u0026amp; Chassis\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eG80 BMW M3\u003c\/strong\u003e (2021+) — Competition \u0026amp; standard, RWD \u0026amp; xDrive\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eG82 BMW M4\u003c\/strong\u003e (2021+) — Competition, xDrive, CS, CSL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eG87 BMW M2\u003c\/strong\u003e (2023+)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eF97 BMW X3M\u003c\/strong\u003e (2020+) — Competition\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eF98 BMW X4M\u003c\/strong\u003e (2020+) — Competition\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAll variants use the same S58 ECU architecture. Confirm your build date and ECU part number before purchasing if you have any hardware modifications.\u003c\/p\u003e\n\u003ch3\u003eWhat You Need to Flash\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eA compatible OBD2 cable (bootmod3 BM3 OBD cable recommended)\u003c\/li\u003e\n\u003cli\u003eAn iOS or Android device with the bootmod3 app installed\u003c\/li\u003e\n\u003cli\u003eA stable 12V+ battery charge before flashing (battery charger strongly recommended)\u003c\/li\u003e\n\u003cli\u003eStock or disclosed hardware modifications — Stage 2 maps require upgraded intake and downpipes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNo bench flash, no dealer visit, no ECU removal. The entire flash process is completed in-car via OBD2 in under 15 minutes.\u003c\/p\u003e\n\u003ch3\u003eExpected Power Gains\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStage 1 (93oct, stock hardware):\u003c\/strong\u003e ~40–55 whp \/ 50–70 wtq over stock\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStage 2 (93oct, intake + downpipes):\u003c\/strong\u003e ~65–80 whp \/ 75–100 wtq over stock\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eE30 \/ E85 blends:\u003c\/strong\u003e Additional gains available with ethanol content — custom tune recommended for max power\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eActual results vary by vehicle condition, fuel quality, ambient temperature, and supporting modifications. Dyno results available on request.\u003c\/p\u003e\n\u003ch3\u003eWarranty \u0026amp; Return Policy\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDue to the digital nature of ECU software licenses, \u003cstrong\u003eall tune sales are final\u003c\/strong\u003e once the license has been activated on your ECU\u003c\/li\u003e\n\u003cli\u003eUnactivated licenses may be eligible for return within 7 days of purchase — contact us before activating\u003c\/li\u003e\n\u003cli\u003ebootmod3 software does not void your BMW factory powertrain warranty on its own, but we recommend consulting your dealer — tuning-related mechanical damage is not covered under our software license\u003c\/li\u003e\n\u003cli\u003eSupport is available via our helpdesk for any flashing issues, map questions, or technical concerns\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy bootmod3?\u003c\/h3\u003e\n\u003cp\u003ebootmod3 is the industry-leading BMW tuning platform trusted by tens of thousands of enthusiasts worldwide. Unlike piggyback or plug-and-play systems, BM3 writes directly to the factory ECU — delivering clean, stable, and fully reversible calibrations. Real-time datalogging, knock monitoring, and over-the-air map updates make BM3 the most capable tool available for S58 platform owners.\u003c\/p\u003e","brand":"BOOTMOD3 TUNING USA","offers":[{"title":"Stock Turbo DI (Single Map)","offer_id":57932963938487,"sku":"SQ8424896","price":849.0,"currency_code":"USD","in_stock":true},{"title":"Stock Turbo Flex Fuel Tune","offer_id":57932963971255,"sku":"SQ8424895","price":1050.0,"currency_code":"USD","in_stock":true},{"title":"Stock Turbo + Port Injection Flex Fuel","offer_id":57932964004023,"sku":"SQ8424898","price":1350.0,"currency_code":"USD","in_stock":true},{"title":"Hybrid Turbo Flex Fuel Tune DI","offer_id":57932964036791,"sku":"SQ8424897","price":1050.0,"currency_code":"USD","in_stock":true},{"title":"Hybrids + Port Injection Flex Fuel","offer_id":57932964069559,"sku":"SQ8424901","price":1200.0,"currency_code":"USD","in_stock":true},{"title":"Built Engine","offer_id":57932964102327,"sku":"SQ8424902","price":1500.0,"currency_code":"USD","in_stock":true},{"title":"Additional Map (Same Mods Diff Fuel)","offer_id":57932964135095,"sku":"SQ8424903","price":450.0,"currency_code":"USD","in_stock":true}],"url":"https:\/\/milkymotorsports.com\/products\/custom-s58-tuning-bmw-f97-f98-g80-g82-x3m-x4m-m3-m4-competition-tune","provider":"Milky Motorsports","version":"1.0","type":"link"}