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      12-05-2012, 09:51 AM   #1
nyc328ci
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What is out there for the N55?

I have a '13 X6 35i on order, should have it within the next 2 weeks. I have the N55 in my 335 now and going into the X6 it will be about a second difference 0-60, I just hope its not noticeable. What is out there to Tune the car other than JB4? I love the way the Injen intake sounds, would it fit? I am not looking to mail out my ECU to get flashed.
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      12-05-2012, 05:21 PM   #2
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Originally Posted by nyc328ci View Post
I have a '13 X6 35i on order, should have it within the next 2 weeks. I have the N55 in my 335 now and going into the X6 it will be about a second difference 0-60, I just hope its not noticeable. What is out there to Tune the car other than JB4? I love the way the Injen intake sounds, would it fit? I am not looking to mail out my ECU to get flashed.
it will be noticably slower but not as much as if you came from an n54 powered E9X
JB3 stage 1 is one option, dinan is the other plus a couple of bespoke ECU flashes (bench flashing required so ECU has to be removed from engine bay).
There is no mass produced intake, only a K&N drop in at this time
There is a downpipe option as well but no way to clear CEL besides the BMS can tool.
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      12-05-2012, 11:47 PM   #3
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Quote:
Originally Posted by bulldog x6 View Post
it will be noticably slower but not as much as if you came from an n54 powered E9X
JB3 stage 1 is one option, dinan is the other plus a couple of bespoke ECU flashes (bench flashing required so ECU has to be removed from engine bay).
There is no mass produced intake, only a K&N drop in at this time
There is a downpipe option as well but no way to clear CEL besides the BMS can tool.
Thanks, I will most likely go with the JB3 and see how that goes
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      12-07-2012, 10:53 AM   #4
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Thanks, I will most likely go with the JB3 and see how that goes
easy install and relatively cheap cost
id recommend the bav tech tool as well to clear codes/CEL's before going to the dealer
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      01-26-2013, 08:27 AM   #5
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it will be noticably slower but not as much as if you came from an n54 powered E9X
When both are tuned, N54 makes considerably more power than the N55. N55 is slightly better on fuel economy and is cheaper to manufacture. With ONLY a JB4 tune and DCI (costing me a grand total of $600), I'm at over 400 rwhp when I run a 60/40 premium/e85 mix.
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