Burger JB4 Map Selection...? - BMW 4-Series Forums
 
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post #1 of 1 Old 05-11-2020, 08:12 AM Thread Starter
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Burger JB4 Map Selection...?

I have a pure stock 2017 440i Xdrive convertible and purchased a JB4 I'm installing today. Does anyone have experience with the various JB4 maps? I run 93 octane fuel and understand that stock with Map 3 pushes hp/torque to around 380 with a 6 psi increase in boost. Does anyone have experience with map 4 or 5? What map will give me the most performance with 93 octane fuel with no other changes? What simple changes have you made that provided the most performance increase for your investment? Burger suggested start with Map 3. Seeking updates I can quickly undo when warranty work is required at the dealership. What has your experience been?

Last edited by Reid865; 05-11-2020 at 08:15 AM.
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