If you upgraded from a JB Stage 1 to a Stage II, need your opinion

Jdub679 · 07-07-2012, 05:11 PM

I'm thinking about pulling the trigger, paying to have my DME updated, and then update to JB Stage II. I'd like personal opinions about how the Stage II upgrade changed the driveability/power.

I do not have any supporting mods, so the car would likely just stay JB Stage II tuned in Map 1.

turugara · 07-07-2012, 06:37 PM

Huge change in throttle control. Jb4 is much smoother than jb3. You won't regret it.

OneFastN55 · 07-07-2012, 06:40 PM

so not worth it

turugara · 07-07-2012, 06:51 PM

Quote:

Originally Posted by OneFastN55

so not worth it

Reason?

amanuuh · 07-07-2012, 08:20 PM

Quote:

Originally Posted by turugara

Huge change in throttle control. Jb4 is much smoother than jb3. You won't regret it.

Agreed. It was a really noticeable difference.

Jdub679 · 07-07-2012, 09:04 PM

Quote:

Originally Posted by turugara

Huge change in throttle control. Jb4 is much smoother than jb3. You won't regret it.

Do you mean that there's less "surge" when going full throttle? I've read in some posts that Stage 2 also pulls harder to redline because boost is sustained much better than in Stage 1.

OneFastN55 · 07-07-2012, 10:26 PM

Quote:

Originally Posted by turugara

Reason?

Paying for the upgrade flash just to get a jb4? what a waste

Jdub679 · 07-07-2012, 10:48 PM

Quote:

Originally Posted by OneFastN55

Paying for the upgrade flash just to get a jb4? what a waste

Definitely not my preferred choice, but you gotta pay to play. But how I spend my money isn't really the topic of this post. Let's stay on topic please. Thanks.

badblkX6 · 07-07-2012, 11:25 PM

Do it. I noticed a difference. Would recommend getting Stage 2 AND catless down pipes.

OneFastN55 · 07-08-2012, 12:02 AM

Quote:

Originally Posted by Jdub679

Definitely not my preferred choice, but you gotta pay to play. But how I spend my money isn't really the topic of this post. Let's stay on topic please. Thanks.

Im pretty sure it related directly to the post..

tamster00 · 07-08-2012, 12:33 AM

I would go for it.

E90MIA · 07-08-2012, 02:33 PM

bms sent me a jb4 stage 1 instead of a stage 2

while i waited for the stage 2 to ship i left the stage 1 installed

pretty big difference between the two and definitely well worthit imo

Jdub679 · 07-08-2012, 02:45 PM

Thank you for your recommendations everyone.

But what I'm interested in is HOW is it different.

Is the transition into boost smoother? Does it pull harder past 5500-redline versus S1? Is the midrange pull stronger? etc etc. I know I'm asking for subjective opinions here, but please provide more specific opinions on "drivability and power delivery".

Thanks all.

07-07-2012, 05:11 PM	#1
Jdub679 Captain 87 Rep 644 Posts Drives: 2011 BMW 335i coupe M Sport Join Date: Jan 2011 Location: Irvine, CA iTrader: (1)	If you upgraded from a JB Stage 1 to a Stage II, need your opinion I'm thinking about pulling the trigger, paying to have my DME updated, and then update to JB Stage II. I'd like personal opinions about how the Stage II upgrade changed the driveability/power. I do not have any supporting mods, so the car would likely just stay JB Stage II tuned in Map 1.
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07-07-2012, 06:37 PM	#2
turugara Major 90 Rep 1,324 Posts Drives: 335i Coupe, 6 Speed Join Date: May 2011 Location: NYC iTrader: (5) Garage List 2011 BMW 335i [9.44]	Huge change in throttle control. Jb4 is much smoother than jb3. You won't regret it.
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07-07-2012, 06:40 PM	#3
OneFastN55 :single turbo ftw: 2 Rep 64 Posts Drives: 2011 335i Join Date: May 2012 Location: Irvine, CA iTrader: (0)	so not worth it
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07-07-2012, 11:25 PM	#9
badblkX6 Captain 63 Rep 772 Posts Drives: 2014 X6 35i Join Date: Sep 2011 Location: South Jersey iTrader: (9)	Do it. I noticed a difference. Would recommend getting Stage 2 AND catless down pipes.
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07-08-2012, 12:33 AM	#11
tamster00 Uhh, Hi =) 9 Rep 280 Posts Drives: 11' E90 335i, 12' Fit Sport Join Date: Apr 2011 Location: Daly City iTrader: (2)	I would go for it. __________________ Was - 08' E90 328i\|Sparkling Graphite Metallic\|AA Tune\|Steptronic\|Navigation\|Comfort Access\|Sport\|Matte Black Kidneys Now - 11' E90 335i Performance Edition\|Space Gray Metallic\|Sport\|Premium\|Navigation\|Steptronic\|JB4\|E R Charge Pipe\|HP Autowerks Foam Filter
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07-08-2012, 02:33 PM	#12
E90MIA Lieutenant 46 Rep 500 Posts Drives: N55 Join Date: Feb 2011 Location: SoFla iTrader: (3)	bms sent me a jb4 stage 1 instead of a stage 2 while i waited for the stage 2 to ship i left the stage 1 installed pretty big difference between the two and definitely well worthit imo __________________ N55 E90 M-Sport \| JB4 Stage 2 \| Vanguard V2 \|RPI Air Scoops \| Performance Diffuser \| Avant Garde 359 \| Carbon Fiber interior \| M3 Spoiler \| BMS N55 Intake \| Active Autowerke Chargepipe\|
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07-08-2012, 02:45 PM	#13
Jdub679 Captain 87 Rep 644 Posts Drives: 2011 BMW 335i coupe M Sport Join Date: Jan 2011 Location: Irvine, CA iTrader: (1)	Thank you for your recommendations everyone. But what I'm interested in is HOW is it different. Is the transition into boost smoother? Does it pull harder past 5500-redline versus S1? Is the midrange pull stronger? etc etc. I know I'm asking for subjective opinions here, but please provide more specific opinions on "drivability and power delivery". Thanks all.
	Appreciate 0 Quote

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