[hovik92]

Hey guys. i just got a 2012 550i and want to put a JB4 on it but have a couple questions and can't think of anyone better than the owners to ask.

1) I keep hearing that there is a JB4 Stage 2 and a JB4 Beta. What is the difference between those and which should I put on my N63 (non-tu)?

2) According to the BMS website, 2012 N63 has a Type B Harness but I sent a picture of my harness to BMS and they told me it is Type A. Has anyone else experienced this?

3) Anyone selling one? I'm in Cali and its pretty tough to get for a decent price.

Thank you guys.

[Hilly]

1 - Beta is the follow up version from stage 2 I believe that also provides for e85 mix....beta is betta!

2 - I have a 2011 which also takes Harness A....2013+ takes B

[535_BiTurbo]

Originally Posted by hovik92

Hey guys. i just got a 2012 550i and want to put a JB4 on it but have a couple questions and can't think of anyone better than the owners to ask.

1) I keep hearing that there is a JB4 Stage 2 and a JB4 Beta. What is the difference between those and which should I put on my N63 (non-tu)?

2) According to the BMS website, 2012 N63 has a Type B Harness but I sent a picture of my harness to BMS and they told me it is Type A. Has anyone else experienced this?

3) Anyone selling one? I'm in Cali and its pretty tough to get for a decent price.

Thank you guys.

JB4 BETA replaced the JB Stage 2.

[hovik92]

Thanks guys. I appreciate it.

[abhaxus]

My 2012 550i was built 9-2011 and uses the type A harness.

[Creynolds]

Originally Posted by abhaxus

My 2012 550i was built 9-2011 and uses the type A harness.

Any hardware (parts) required for jb4 beta upgraded from stock

[535_BiTurbo]

I think the N63 JB4 upgrade is just a new board that you swap out with the old board. And then there is the Canbus connections and BCM

[Creynolds]

Originally Posted by 535_BiTurbo

I think the N63 JB4 upgrade is just a new board that you swap out with the old board. And then there is the Canbus connections and BCM

What about beta I don't mean for the kit I meant because of the more aggressive tune donee need diff intercoolers or internals or nothing all

[HitmanX16]

I've been debating on getting this...does anyone know what there are any possible effect long term (if any). Since its basically tuning the vehicle pass the recommended specs. Or is it that the car is under tuned and the JB4 is just optimizing the engines true potential?

Just curious...................................

[F10onesimus]

Jb4 isn’t letting me activate and it throwing a boost sensor code??????

[Hilly]

probably not installed correctly. Check and make sure all pins are where they are supposed to be

[550imsport2014]

Originally Posted by hovik92

Hey guys. i just got a 2012 550i and want to put a JB4 on it but have a couple questions and can't think of anyone better than the owners to ask.

1) I keep hearing that there is a JB4 Stage 2 and a JB4 Beta. What is the difference between those and which should I put on my N63 (non-tu)?

2) According to the BMS website, 2012 N63 has a Type B Harness but I sent a picture of my harness to BMS and they told me it is Type A. Has anyone else experienced this?

3) Anyone selling one? I'm in Cali and its pretty tough to get for a decent price.

Thank you guys.

Don't waste your money, you won't feel a noticeable difference and it will make you want more, just have a company program the computers with a tune. Car has been out so long, the tunes are way more powerful and noticeable.

[535_BiTurbo]

Originally Posted by 550imsport2014

Don't waste your money, you won't feel a noticeable difference and it will make you want more, just have a company program the computers with a tune. Car has been out so long, the tunes are way more powerful and noticeable.

Were you running MAP 1? Did you have the BCM? N63 or N63TU?
Why do you feel it's a waste of money without providing any detailed insight on why?

[Hilly]

Originally Posted by 550imsport2014

Don't waste your money, you won't feel a noticeable difference and it will make you want more, just have a company program the computers with a tune. Car has been out so long, the tunes are way more powerful and noticeable.

Jb4 map 1 and 2 not a huge difference but can feel the difference over stock, map 7 different story....much more of a difference from map 1 or 2.Definitely worth getting in my opinion

[mike@x-ph.com]

2012 550 can be tricky .. .Very early models uses Harness A and later 2012 models use Harness B

[MajorBob]

Originally Posted by mike@x-ph.com

2012 550 can be tricky .. .Very early models uses Harness A and later 2012 models use Harness B

Yep, 2012 was the year the harness changed. I have a 2012 with B harness. If in doubt send a picture and confirm.