840i (G14–G16) Tuning

Tuning for the BMW 840i (B58): flash tunes, piggyback tuners and flashing hardware. Check the vehicle applications table on each product for exact fitment.
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  • JB4 BMW B58 GEN1 & GEN2

    JB4 BMW B58 GEN1 & GEN2

    Burger Motorsports

    JB4 BMW B58 GEN1 & GEN2
    $599.00
  • bootmod3 B58 Tune

    Bootmod3 B58 Tune

    bootmod3

    Bootmod3 B58 Tune
    $595.00