May 18, 2024 · I have a G80 MT with a mid pipe and intake. I just got the JB4 and run only 93 octane. Since I have a MT I am looking to make power similar to a M3 Competition with a JB4. …

Nov 27, 2020 · If you want power adders, do it in a way that doesn't involve a boost chip. Those things on race mode can run 26-28 psi on the stock turbo which will fry it. I have seen a few …

While the JB4 is the ultimate tuning tool the JB+ is a quick and simple way to add a few HP with minimal cost and minimal install effort. Something that anyone can buy, install in under a …

Jul 25, 2023 · The JB4 uses MAP-3 as the "Progressive WMI" Setup MAP, not MAP-4, just so you are aware. Yes, you can Run the MHD Stage-xx Map of your choice with the JB4 as a "Piggy …

Hello, I just installed my jb4 for my g87 and from what I see it looks like it's running lean. Is there a specific map for the g87 because I bought my jb4 from a guy who had an m3 without the fuel …

Change the boost by gear values to 0 and be sure the pedal is 100% down when logging. Burger MotorsportsHome of the JB4 the worlds most popular turbocharged tuning system!

Mar 31, 2025 · I have a G80 LCI and running between E30-40. Do those running E change this setting, or do you leave it at default of 0?

Oct 31, 2023 · BMS WMI kit on the M4 2020 (FSB Wiring) 10-31-2023, 03:42 AM hello everyone, about to install my BMS WMI kit on the M4 2020 COMP. after an extensive search for a few …

Jun 21, 2021 · And I'm also considering the piggyback JB4 is offering since ECU tuning is out of my budget range, and I don't want to constantly swap ECUs each time I bring the car in for …

Jan 24, 2019 · I did like how the JB4 can be tweaked and updated depending on mods which is a benefit not afforded by RaceChip. I’ve had piggybacks, I’ve had tunes using factory ECUs, I’ve …