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Technical Topics B48 4-Cylinder Turbo Engine / Drivetrain / Exhaust Modifications JB+ vs BM3 for G20 2019/2020 330i

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      07-22-2020, 11:22 AM   #1
boostme92
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Anyone experience the performance difference from having JB+ and going to BM3? Throttle response, kick down, jerkiness in low gears etc...?

Update:
My 2020 330i has production date 07/19 and I was able to successfully flash my DME with BM3 Stage 1 91 Octane. I sent my vin and software id's over to their support team and said I was good to go

First three days ever since I flashed, throttle response is way better compared to stock, power increase is definitely there (not too sure on exact values of hp/tq), and jerkiness in 1st-2nd is gone. Haven't gunned it yet as I don't want to strain the car until I'm able to purchase a dp, intake, and exhaust system in the coming month.
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Last edited by boostme92; 07-25-2020 at 01:06 PM.. Reason: Missing some words
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      07-22-2020, 12:40 PM   #2
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g20beam will be the best person to answer that.

But if I had to guess, I'm sure the tune will be smoother and more OEM like.
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      07-22-2020, 12:40 PM   #3
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Quote:
Originally Posted by boostme92 View Post
Anyone experience the performance difference from having JB+ and going to BM3? Throttle response, kick down, jerkiness in low gears etc...?
BM3 is far superior. I have ran a JB+ on my F30 and G20 and I honestly don't see a difference and any speed. BM3 is just smooth all around, but please make sure your car can handle the tune and never over tune it.
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      07-24-2020, 09:15 AM   #4
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You can try both from us and keep the one you like more, we offer both units with a 30 day money back guarantee

In terms of actual tuning capabilities, the bm3 is superior.
JB+ is a simple boost controller that's easy to install/uninstall with reliable power and a great price
In my opinion, they are not targetting the same customer base
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      07-24-2020, 08:04 PM   #5
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Best Bmw 330i G20 performance mods

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Originally Posted by boostme92 View Post
Anyone experience the performance difference from having JB+ and going to BM3? Throttle response, kick down, jerkiness in low gears etc...?
Anyone know what the best performance mods are for the g20 330i. i already have JB+ ordered on the way
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      07-25-2020, 01:12 PM   #6
boostme92
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Quote:
Originally Posted by christians g20 View Post
Anyone know what the best performance mods are for the g20 330i. i already have JB+ ordered on the way
Please let us know the differences you've experienced once you install JB+
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      07-25-2020, 01:54 PM   #7
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Quote:
Originally Posted by boostme92 View Post
Anyone experience the performance difference from having JB+ and going to BM3? Throttle response, kick down, jerkiness in low gears etc...?

Update:
My 2020 330i has production date 07/19 and I was able to successfully flash my DME with BM3 Stage 1 91 Octane. I sent my vin and software id's over to their support team and said I was good to go

First three days ever since I flashed, throttle response is way better compared to stock, power increase is definitely there (not too sure on exact values of hp/tq), and jerkiness in 1st-2nd is gone. Haven't gunned it yet as I don't want to strain the car until I'm able to purchase a dp, intake, and exhaust system in the coming month.
I've been gunning mine for 3 weeks
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      07-25-2020, 02:05 PM   #8
boostme92
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Quote:
Originally Posted by Punkwrock View Post
I've been gunning mine for 3 weeks
Have you added any aftermarket parts to your cart yet like a downpipe, or like an intake system?

Do you feel if you're pushing the car a little bit too much?
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      07-25-2020, 02:42 PM   #9
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Quote:
Originally Posted by boostme92 View Post
Quote:
Originally Posted by Punkwrock View Post
I've been gunning mine for 3 weeks
Have you added any aftermarket parts to your cart yet like a downpipe, or like an intake system?

Do you feel if you're pushing the car a little bit too much?
no other parts on other than the bm3 stage 1. honestly I've always gotten my cars tuned at stage 1 from Cobb mutliple cars, Ktuner, and now bm3. I've had 0 issues over 8 years. Usually a stage 1 tune from a reputable tuner are totally safe. they aren't going to build a tune that will be borderline and have so many people risk engines. just keep your burbles at the recommended max settings for a stock downpipe. I have my duration at 1.6 and aggressiveness at 5.5. But I think I might just send a log to Bootmod3 to see if everything looks good with the numbers. But never have I had any issues with running OTS maps from reputable tuners. it's when people start running tunes for parts they don't have in order to try to get more power or start running a 2 step tune and they blow the engine. and it's not like the tune is pushing insane numbers. I think it brings it to about 300 to 310 crank HP and 360 to 370 crank tq

did you custom adjust the burbles?? if not, let me send you my IG and I can send you video of how the car sounds.😈
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      07-25-2020, 05:08 PM   #10
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Quote:
Originally Posted by boostme92 View Post
Quote:
Originally Posted by christians g20 View Post
Anyone know what the best performance mods are for the g20 330i. i already have JB+ ordered on the way
Please let us know the differences you've experienced once you install JB+
will do 👍
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