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    • BMS launches JB4 tuner for 2017-2019 Porsche 991.2 9A2B6 3.0 911 Carrera models - S, T, GTS

      Good news here for those wary of flashing their ECU or messing with the factory software. Not to mention those who hate the Porsche tuning tax. BMS (Burger Tuning) finally has a JB4 tuning box available for the Porsche 991.2 9A2B6 3.0 platform although the offering is still in the early phases.


      You may recall BMS has success to show with the 991.1 Turbo and S 3.8 platform so there is no reason to doubt the transition to the 3.0 turbo models.

      We want to see dynos for the application on each 9A2B6 3.0 model.

      For now, here is the feature list:

      • Power gains of up to 40hp and 60tq to the wheels on a stock vehicle
      • Quick Plug & Play Installation
      • CANbus integration offering unrivaled tuning features and performance
      • Runs as smoothly as stock, this is how your Porsche should have come from the factory
      • Compatible with all driving modes
      • Fuel economy unchanged during normal driving
      • Compatible with JB4 Mobile for smartphone logging, tuning changes, and adjustment
      • Ethanol (E85) compatible tuning maps
      • Able to read/delete fault codes
      • Not VIN locked, can be removed without a trace and resold down the road
      • Made in the USA
      • Free USA Shipping
      • 5 year warranty

      Even if you are using a flash tune you can still benefit from the JB4 with map switching, boost per gear, reading/deleting codes, and methanol injection safeties.

      A great value at $799.99: https://burgertuning.com/collections...rrera-jb4-tune

      Results from PorscheBoost member @Aatish who is getting the box installed should be available soon.

      This article was originally published in forum thread: BMS launches JB4 tuner for 2017-2019 Porsche 991.2 9A2B6 3.0 911 Carrera models - S, T, GTS started by Sticky View original post
      Comments 33 Comments
      1. Aatish's Avatar
        Aatish -
        Damn right they will!
      1. Payam@BMS's Avatar
        Payam@BMS -
        Thanks Joe! The Porsche platform has been great and the customers are fantastic.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Payam@BMS Click here to enlarge
        Thanks Joe! The Porsche platform has been great and the customers are fantastic.
        You and I have different experiences there.
      1. Payam@BMS's Avatar
        Payam@BMS -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        You and I have different experiences there.
        LOL
      1. Dochaley99's Avatar
        Dochaley99 -
        will keep an eye for Aatish comments - hope he enjoys his results! if positive, then I will consider this upgrade myselfClick here to enlarge
      1. Aatish's Avatar
        Aatish -
        Hoping to have it on this weekend. Will work on having something on here soon after.
      1. Dochaley99's Avatar
        Dochaley99 -
        Click here to enlarge Originally Posted by Aatish Click here to enlarge
        Hoping to have it on this weekend. Will work on having something on here soon after.
        Question for Aatish: are you modifying exhaust system as well?
      1. Aatish's Avatar
        Aatish -
        I have a Fabspeed X-pipe currently. Will probably do something with the cats when I go full send.
      1. Dochaley99's Avatar
        Dochaley99 -
        Click here to enlargeClick here to enlarge
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Aatish Click here to enlarge
        Hoping to have it on this weekend. Will work on having something on here soon after.
        Soooo? How did it go?
      1. Aatish's Avatar
        Aatish -
        Still not on cuz life/work :/

        That said, using time to get baseline dragy numbers.

        Install seems straight forward; no need to remove bumper. I followed the guide outlining how to go in through the fan/vent area. Takes about 5 minutes to take apart. Y-Pipe sensor is cake to reach...manifold is tough. Figured out how to get my hand down there and can unplug the sensor...just didn't have time to finish.

        I'm off this Friday, so that should be the day. Weather's dipping into the 50s around here as well, so hoping to take advantage of that.

        Post will be provided as soon as the thing is on.

        -Aatish
      1. Payam@BMS's Avatar
        Payam@BMS -
        Can't wait to get your impressions!
      1. Dochaley99's Avatar
        Dochaley99 -
        your's is PSE?Click here to enlarge
      1. Aatish's Avatar
        Aatish -
        No. Base exhaust + X-pipe

      1. Aatish's Avatar
        Aatish -
        Breaking this down into 3 different sections:
        1.) Install
        2.) Performance impression
        3.) Daily drivability impression

        TL;DR: If you’re looking for a nice bump in power that doesn’t involve taking out your ECU and risking your warranty at a high level, then I would totally go JB4 route. Not sure how it compares to other piggy back units, however given the experience with my 991.2 C2 and my past dealing with BMS and the team, I wouldn’t consider anything else at the moment.

        Install TL;DR:
        - Relatively simple, in comparison with other units.
        - No need to remove bumper
        - About 30 – 45 min if you take your time
        Performance TL;DR:
        - Very noticeable increase in power
        - Not going to make your car a built GTR, but definitely significantly faster than stock
        - Logging suite and app are ace
        Drivability TL;DR:
        - Not jumpy or unrefined in any way during normal driving
        - No codes or issues experienced (so far)
        - Feels just as refined as stock


        Install

        Overall, not hard just requires proper prep and a slow pace. There are only 2 sensors, one on the Y-pipe and one on the intake manifold. Y-pipe is easy to access…intake manifold is more involved. Still, possible to do without removing any body panels. Only tool needed was an 11mm socket to disconnect the negative battery terminal.

        1.) With a cool car, unlock car, roll down windows, and pop the frunk and engine cover open. Do not turn on the car (or let it run for too long). You do not want to work while the engine is hot/warm.


        2.) In the frunk, pop off the top cover exposing the battery. Take 11mm socket and disconnect the negative battery terminal. This will cut power to all systems (including the DME and all the sensors). Optional step, though I’ve always done this when install piggyback tunes in the past. Lowers the risk of shorting something during install…



        3.) In the rear of the car, remove the duct leading to the intake plenum. Pinch outside wall to flex the stiff plastic clip. This will allow you to slip the rubber off the retaining wall, freeing the duct.


        4.) Pull on the top edge of the plastic cover to free from top corner retaining plugs. Once free, repeat with bottom corner plugs. Once loose, shift up and lift out, exposing the fans and their connector pieces.


        5.) Pick a fan, and grab the connector. Push the tab on the rear of the connection, and pull firmly to release the connection. There is a retaining piece to keep the fans affixed to the frame. To release, pull firm and pinch the pin from underneath. Same goes for the clip wire. Remove fan and tuck the clip away from the opening. Repeat for the other fan. Make sure you note which fan is right and left.


        6.) To remove the plenum, first unhook the release cable from its seat on the plenum. Then, firm lift on the plenum, releasing the pressure holds from the interior plumbing. Lift out completely from bay.


        7.) Note position of the Y-pipe sensor. Practice releasing and installing the connector with 1 hand. Get a feel for how the plug releases and the behavior of the plug when properly inserted.

        8.) Optional: Grab some lube (lotion or Vaseline) and make sure your hands are somewhat moist and slippery.

        9.) Reaching the intake connector requires giving your car a minor colonoscopy. Note the position of the sensor and plug. Route the wiring harness with the brown and black wires near the connector area. Go in with a flat hand work your way down there. I have large hands, so I needed to do some squeezing (hence the lube). Get your hand behind the connector. Once down there grab the back and release the plug. Grab the JB4 female end and insert the DME end into it. Will take some finessing, but it is possible. Once that’s in, grab the male JB4 end and plug into the sensor plug. Make sure it’s securely attached (should not be loose). Once satisfied, slowly get your hand/arm out. Be careful not to tear any skin. Again, will require some finessing but it’s possible. Practicing with the Y-pipe connector and building some muscle memory goes a long way.


        10.) Repeat connection steps for the Y-pipe (not as hard). Yellow cable wiring harness.

        11.) Disconnect the sound tube on the left side, route the green wire through till it stops moving

        12.) Inside car, fold seats back and pop the top carpet cover off on driver side. Just grab and pull firmly. Green wire should be there. Pull through completely and connect the OBD wire to the plug. Then plug into the OBD port, near the accelerator pedal. Once connected, push wiring underneath floor matt and into the side seems to hide. Reattach the carpet cover.

        13.) Reconnect the tube if you want to. I didn’t. Tuck the JB4 unit into the right-hand side of the engine compartment. There’s a little space where it tucks nicely. Zip tie if you want to.

        14.) Repeat steps 6-1 in reverse to reassemble the plenum, fans, cover, and battery. Once connected, start car and make sure no CEL. Connect to the app if you have the Bluetooth option.

        15.) Go for a quick spin to make sure everything is well. There shouldn’t be any CELs or warnings…

        Will take a few miles to adapt, but you’ll notice a decent bump during the first couple of pulls. Once the car has some miles on it with the unit, it picks up in power and it’s very noticeable the change.


        Performance

        Initial impressions after install were nice, though a bit underwhelming at first. Car felt the same down low in the revs, however really picked up after 4500. JB4 was set on map 1 and driven for about 100 miles or so. Definitely became more noticeable after a days worth of driving. Pulled like a train throughout the range; no more fall off feel after 5000 rpm, like how it feels on stock. It pulls very strong once boost kicks in, all the way to redline. After shifts, the boost is held and it’s a noticeable pull when into next gear.

        Map 1 is a great starter map. Map 2 turned it up a notch more. Definitely a bit more pull during acceleration. The way to car picks up in RPM after 5500 rpm is legit. Stock, car feels like it’s being held back and falls off a bit. With Map 2, car keeps pulling hard till redline, and keeps intensity through the gear. I love it!!!

        The JB4 Bluetooth kit is optional. I would honestly not get the unit without this option. Worth the extra money; gives you a lot more control and ability. I’ve been logging regularly to make sure timing and AFRs are stable (they have been). Map switching on the fly is sweet. Very little lag in data communications; it’s super responsive. Auto-log feature is love and hate. I like that it starts a log when I do a pull, and automatically ends once I lift off…sometimes it starts when I’m aggressively passing someone though. Kinda annoying, though I’ll blame this on me. The manual log function works very well.

        Hoping to try E85 mixes in the coming week, once I burn through 1 more tank. I have about 300 miles on this unit in the past 3 days. Hopefully should have another 200-300 by next weekend.


        Drivability

        Cruising around how I normally do (sport mode, manual shift), car feels factory in terms of refinement. Definitely feels a bit more powerful, however everything is still smooth. Shifts in both auto and manual mode are still quick and snappy. No jerkiness or anything abnormal so far…

        Haven’t had any codes or CELs (knock on wood). Scan function from the JB4 app shows nothing wrong. Drove car through light rain (not by choice). Weather proofing seems to be up to snuff.

        If you’re concerned about compromising the refined feel of the car with this unit, I would not be too concerned. I used it all day for my Saturday rounds, and it all seemed to be business as normal (though it just moved a bit faster).


        Final Thoughts

        Overall, very satisfied with the JB4. Would definitely recommend this to anybody looking for some more performance, without the need to remove ECU. A proper flash tune may provide a bit more flexibility for performance gains…but this is more than enough for me. Performance bump with map 1 and 2 is worth it alone. The app and extra maps is even better. I can geek out with the logging software and the user adjustable map function if I want to as well, which is sweet.

        Was very satisfied with BMS when I had my Bimmer. This holds true with their Porsche offering. Excited to see how this platform develops as more people jump on board!


        Install guide attached for reference. Expect dragy and log data in the coming week.

        - Aatish

        Attachment 59364
      1. mrpat3l's Avatar
        mrpat3l -
        Nice write up Aatish, I was waiting for you to share your feedback.
        I'm up in the air right now, can't decide if i should go with the JB4 box or Cobb stage 1.
        The car feels reliable enough for me to risk losing warranty but then again you never know..
      1. Aatish's Avatar
        Aatish -
        No problem dude.

        I'd avoid Cobb if you have the warranty. The CPO warranty on Porsche's is pretty sweet, and I really didn't want to burn it this early.

        JB4 isn't 100% risk advert, however it's nowhere near as obvious as the Cobb. I'm confident removing this unit a week prior to service will keep things drama free at the dealer.

        Might be back on the East Coast soon ; you're more than welcome to check it out in person.
      1. mrpat3l's Avatar
        mrpat3l -
        Let me know, i'm a few minutes away from Mikes shop in Astoria. I might just pull the trigger on this considering you had good things to say, maybe future updates can provide numbers similar to Cobb.
      1. Aatish's Avatar
        Aatish -
        Absolutely
      1. subaru335i's Avatar
        subaru335i -
        Sweet. Jealous of the 3.0 turbo motor for sure.