Bootmod3 (BM3) B58 Tune – BMW 340i / M340i / 440i / M240i / 540i / X3 M40i

** BM3 for the BMW B58 engine now available!!**

* Please email your full VIN number to Online@AutoTalent.com upon purchasing with your order number so we can provide your activation key.

** Required OBD to Ethernet cable is INCLUDED WITH EVERY PURCHASE **

 ** One Free OTS Map Included **

** Enet to Phone Adapter is INCLUDED for FREE **

Advanced Tuning for BMW F and G Series Vehicles

bootmod3 (BM3) is the most widely adopted flash tuning platform for the BMW B58 engine, covering both F-series and G-series vehicles. Whether you're driving a daily 340i or a modified M340i, BM3 unlocks significant power from your B58 directly over the OBD port in as little as 3 minutes — no DME removal required, no shop visit needed.

Flash your BMW using the bootmod3 iOS, Android, Windows, or macOS app. One OTS map is included with purchase, and Stage 1, Stage 2, Stage 2+, and race fuel maps are available separately. The B58 also features bootmod3's latest CustomROM V2 platform on Gen2 vehicles, adding Live Tuning capability on top of all standard CustomROM V1 features.

Expected Power Gains — B58 Gen1 (F-series)

Stage 1 91 oct: up to +18% HP / +26% TQ Stage 1 93 oct: up to +20% HP / +26% TQ Stage 1 E30: up to +25% HP / +30% TQ Stage 2 91 oct: up to +24% HP / +32% TQ Stage 2 93 oct: up to +26% HP / +32% TQ Stage 2 E30: up to +30% HP / +35% TQ Stage 2 Race Gas: up to +30% HP / +35% TQ Stage 2+ 91 oct: up to +37% HP / +62% TQ (requires upgraded HPFP) Stage 2+ 93 oct: up to +43% HP / +68% TQ Stage 2+ E30: up to +47% HP / +73% TQ Stage 2 AGG (aggressive burble) versions available

Expected Power Gains — B58-D Gen2 (2020+ G20 M340i, X3 M40i, X4 M40i)

Stage 1 91 oct: up to +18% HP / +28% TQ Stage 1 93 oct: up to +21% HP / +30% TQ Stage 1 E30: up to +28% HP / +34% TQ Stage 2 91 oct: up to +22% HP / +33% TQ Stage 2 93 oct: up to +25% HP / +35% TQ Stage 2 E30: up to +31% HP / +38% TQ Stage 2 AGG (aggressive burble) versions available

Platform Features

• On-the-fly map switching via steering wheel cruise control buttons (4 map slots)
• Advanced flex fuel / ethanol tuning — 0% to 100% ethanol without reflashing
• Anti-lag — build boost while stationary or rolling
• Full map editor with nearly 5,000 tuning tables
• Live Tuning — real-time DME adjustments via map editor (Gen2 / CustomROM V2)
• Datalogging of 70+ channels concurrently at the highest throughput available
• Live Dash — real-time in-app monitoring of boost, timing, knock, fuel trims, and more
• DTC code reading, clearing, and deactivation
• Burble maps, top speed limiter removal, higher rev limiter, custom throttle mapping
• Back-to-stock reversion and DME re-lock at any time
• Available on iOS, Android, Windows, and macOS
• Cloud storage for maps and datalogs

Compatible Vehicles (B58)

• M140i F-series: 2015–2019
• M240i F-series: 2014–2021
• 340i F-series: 2015–2019
• 440i F-series: 2015–2020
• 540i F-series: 2017–2023
• 640i F-series: 2017–2018
• 740i F-series: 2015–2022
• M340i G-series: 2019+
• 440i G-series: 2020+
• 540i G-series: 2020+
• X3 M40i: 2017+
• X4 M40i: 2018+
• X5 40i: 2018+
• X7 40i: 2019+
• Z4 M40i: 2018+
• Toyota Supra A90/A91 B58: 2020+

Important: Vehicles with 2019+ software updates may require a bench DME unlock before OBD flashing is possible. Contact us before purchasing if you're unsure about your vehicle's software version.

License delivered instantly via email after purchase.