Transform your Gen 2 B58 powered BMW M240 M340 M440 into a 475whp beast with our simple bolt-on performance package!
Save $278.99 when you purchase this package
Package Features & Benefits
- Gain over 475HP with safe, proven JB4 tuning on a locked 🔒 ECU
- Easy plug-and-play installation with no permanent modifications
- JB4 tuner allows wireless on-the-fly power adjustments & data logging
- Upgraded competition intake adds all the air needed for more power
- The BMS oil catch can keeps oil out of your intake system under high boost
- New NGK spark plugs and install tools included ( gap to .022")
- Includes the all-new JB4PRO Bluetooth Adapter & Free App
- Save $298.99 with this package (Financing available)
Vehicle Fitment
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BMW 2 Series
• 2022+ G42 Gen 2 B58 BMW M240i, M240i xDrive, and M240xi
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BMW 3 Series
• 2019-2024 G20 G21 Gen 2 B58 BMW M340i, M340i xDrive, and M340xi
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BMW 4 Series
• 2021-2024 G22 G23 G26 Gen 2 B58 BMW M440i, M440i xDrive, and M440xi including Gran Coupe
Install guides can be downloaded from each product's page.
Kit Includes
- B58 BMW JB4 Performance Tuner
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JB4PRO Bluetooth Adapter & Free JB4PRO App
- BMS Turbo Double Baffle Oil Catch Can for G Chassis B58 M240 M340 M440
- 6 NGK 96206 B58 Spark Plugs
- BMS Billet Spark Plug Gapper Tool (12mm)
- BMW / MINI - Magnetic Spark Plug Socket
- Specialty Spark Plug Feeler Gauge
- Official JB4® Logo Car Emblem/Badge
- Official JB4® License Plate Frame
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JB4 Magnetic Air Vent Phone Mount Holder
- White Burger Motorsports Logo Sticker Sheet (2 Pack)
- Choose one of our B58 intakes
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BMS B58 BMW M240i M340i M440i Competition Cold Air Intake
- BMS Silicone Front Mount Cold Air Intake for G Chassis B58 BMW
Recommended Add-ons (Sold Separately)
- BMS Billet Strut Cross Braces for G20 G21 G22 G23 G26 G42 BMW (all engines)
- BMS Billet Oil Filter Cap for B58 BMW Engines
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Fuel-It! Bluetooth FLEX FUEL KIT for the B58 BMW M240i, M340i, & M440
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BMS High Output Ignition Coil Kits for BMW, MINI, & Supra
- B58 BMW/Supra BMS Oil Catch Can Oil Filler Cap Dual Vent Connection Kit
- B58 BMW Turbo & Intake Heat Sheild
Download the All New JB4PRO Free App
- Download JB4PRO for Android here.
- Download JB4PRO for iPhone here.
Dyno Results: 2020 BMW M340i
