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Terry @ BMS Terry @ BMS is offline
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Join Date: Jan 2008
Default JB4 for Maserati Ghibli - 06-29-2018, 08:50 PM

Use subject to terms and conditions posted at

THIS PART IS LEGAL FOR USE ONLY IN COMPETITION RACING VEHICLES AS DEFINED UNDER CALIFORNIA LAW, AND IS NOT LEGAL FOR USE IN ANY OTHER MOTOR VEHICLE. California law defines a "racing vehicle" as "a competition vehicle not used on public highways." (Calif. Health & Safety Code 39048) This part may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event. Competition-only motor vehicles may not be driven to a racing event on a public highway and must be transported on a trailer or other carrier. USE OF THIS PART IN ANY OTHER VEHICLE MAY SUBJECT YOU TO FINES AND PENALTIES FOR VIOLATION OF FEDERAL AND/OR STATE LAW, WILL VOID YOUR WARRANTY FROM BURGER MOTORSPORTS, INC, AND CAN VOID YOUR VEHICLE'S WARRANTY. It is your responsibility to comply with all applicable federal and state laws relating to use of this part, and Burger Motorsports, Inc hereby disclaims any liability resulting from the failure to use this part in compliance with all applicable federal and state laws.

Order Here:

Hey guys,

Been poking around with this 2014-2018 Maserati Ghibli project for awhile and finally was able to get it wrapped up and over to the dyno for testing. For those not in the loop it's a V6 3L twin turbo platform that retails in the 70k range. This specific car is a base model, and they also offer it in an S model that runs a little more boost from the factory. It's marketed to be an M3 competitor but realistically probably more like an Audi S4 or BMW 340i competitor at least on the performance end of the spectrum.

Our test car is a 2017 all stock base with around 13k miles on it. Also equipped with some huge power sapping 21" rims. Fuel was ~93 octane.

The JB4 is working great and we've already got CANbus up and running for advanced mapping, logging, and safety features. After a couple hours on the dyno we settled on a solid 50whp/50wtq mapping for the initial release. Probably another 15-20whp in it with more aggressive JB4 mapping as we get more familiar with the platform.

Intro pricing on the JB4 is $529. In stock and ready to ship!

JB4 Mobile Smart Phone wireless connection directions Click here
BMS data cable hard wired directions and software Click here

JB4 Map Guide:

Map0: Fully disable JB4
Map1: +3.5psi peak over stock, default map, suitable for all fuels.
Map2: +3.5psi peak, less top end taper, more aggressive version of map1.
Map3: +4psi peak, suggested for 93 octane and/or modified vehicles
Map4: Low boost VALET map
Map5: +6psi peak, suggested for 30% E85 mixtures and/or unleaded race fuel
Map6: User adjustable by RPM map on user adjustment page, values are peak boost over stock by RPM under heavy throttle.
Map7: +7psi peak, experimental map for unleaded race fuel. Factory fuel system likely can't keep up with this map on E30.

JB4 Firmware

Note firmware updates are for JB4 models only. e.g. those with OBDII connection. Loading this firmware to a Stage1 will result in a failed load and you'll have to email us for Stage1 firmware to load and restore it to where it was.


1) Increased sensor sampling rate for smoother performance.

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Stock log:
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JB4 Tuned log:
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How to update firmware:

For firmware updates if having issues we suggest you turn off WiFi, change upload timeout to 25, and set your phone next to JB4 box under the hood.

Download firmware using the new JB4 Mobile firmware database or externally by clicking this link.

Burger Motorsports
Home of the JB4 the worlds most popular turbocharged tuning system!

It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.

Last edited by Payam @ BMS; 04-16-2020 at 09:00 AM..
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