[mjab]

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[K320]

Racechip ultimate. There is an article comparing all euro tunes on tha racechip website you can read. Personally i like mine. I also have a jb4.

[mike@x-ph.com]

Not familiar with the different euro tunes. But JB and Jb4 are the most popular here in the US. Lots of vendors, including us ship international if you would be interested in giving it a try.

[K320]

Mike is telling you the truth.

More tunning (canbus, ewg), e85 and great support: BMS.
Start with stage 1 and later upgrade if you like.

Racechip, Active Autowerke are good options with easy tunning.

[mjab]

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[krndanic307]

im with the same dilemma...
JB and JB4 are totally different?
I was looking also at the AFE scorcher and Active?

[mjab]

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[BogalhoF30]

Originally Posted by mjab

Thanks, everyone.

Right now I am leaning towards http://www.br-performance.be/en-be/c...011/4110-328i/. They do a proper ECU remap customising the torque and performance figures to a customer's specifications and have come clean about 'invisibility issues'. For the time being, their tune stays invisible to BMW but they cannot guarantee that for the future. They also offer an extended warranty on the drivetrain and transmission courtesy of a French insurance company. Oh yeah, and they are the only TV-approved tuner in Belgium.

This is good enough for me. A proper custom tune that boosts performance and torque to figures I would get from a piggyback, removes the speed limit and offers a solution to the warranty issue. To me, a tune is far superior to a piggyback though I am not dissing those who have opted for the latter.

Anyone out there with a BR performance tune on the N20?

How does it offer a solution to the warranty problem?

[mjab]

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[ngbernie]

Rest assure, you are in good hands. There aren't many posts about them and are all over the other bimmerpost forums: http://f80.bimmerpost.com/forums/sho....php?t=1065967 for one

You are lucky to be in Belgium, many of us (directly or indirectly) had our ECUs shipped to BR Perf to have the ECUs unlocked. They seem to be very busy the past few weeks though, give them a call before going down.

[Dippydo]

Not sure how that can be undetectable. Everyone says the ECU has a flash counter. It's bound to happen though eventually someone cracking the codes. But yah too bad they are so far away. LOL.

[Yellowflash]

You can send them ECU, and they can remap it for you remotely.

I considered before to do this, but I'm happy with present piggy back solutions on the market as I have one myself.

If I still had my F20 116i, I would send it straight away, as power difference is massive what they can extract from it!

But for N20 it doesn't look like that, and it's still on current piggy back range.

[BogalhoF30]

Originally Posted by mjab

I will have to get more details, but I think a French specialist insurance company takes over the warranty on the drivetrain and transmission if BMW declines warranty on those parts as a result of the tune. This carries an annual fee and can be extended to five years.

Very interesting. Please keep us posted! Much appreciated.

-Daniel

[mjab]

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[FSociety]

So jealous I'm not in Belgium!

[mjab]

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[FSociety]

Originally Posted by mjab

I am booked in for 5 May. Stay tuned!

Cool!
Pls get on their Dyno before and after !
We look forward to your review on the N20 engine
There's a forum member who has BR-P stage1 already on his Z4 28i who had JB4 previously.

[bimmerillini95]

Hey guys i've got a question, do I need to dyno tune my car after installing cai? Or will dyno tuning it void my warranty?

[mjab]

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[XenaBimmer]

I've always been a pro BMS tune guy and think there's some solid evidence now--I ran a 13.6@101 tonight with just a Stage 1 tune and on stock run flats; I'd say not to bad for such a cheap and easy mod!!
I've been running the tune now for over 10,000 miles flawlessly

[mjab]

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[FSociety]

Congrats mjab