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X308Black
07-28-2012, 09:01 PM
Guys I have a 2008 535i. I was looking at the tunes that are avaiable for it. JB3 or JB4. If I install these am I looking at any short term or long term effects? im not planning on beating on the car. never had, but it would be nice to pick up the HP 50-75 my extended warranty is up at 90k I have 70 on it now.

edwindbimmer
08-07-2012, 03:47 AM
Just order JB4 pnp for mine, should receive it coming Wed. Anyway, I am not planing beat up my car. Like you said it is nice to have more power.

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patryan
08-07-2012, 06:20 AM
I got a JB4 for my '08 535xi just a month or two ago. Like it a lot, not driving crazy but enjoying a little extra boost from time to time on the highway. I've had the car since new (and about 80k on it now). I've actually noticed an improvement in fuel mileage with it (proof that I'm not driving it with a heavy foot if nothing else).

edwindbimmer
08-11-2012, 01:34 PM
Get my jb4 installed two days ago. It is to powerful for me but it is fun to drive and I am not driving crazy either.

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MachtSchnell
08-11-2012, 05:05 PM
To powerful...not possible :). What map are you running?

edwindbimmer
08-12-2012, 01:50 AM
It is too powerful for me and it does not mean it is for you.

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