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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > what do I actually own? n55 or n54?



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      12-09-2012, 05:48 PM   #1
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what do I actually own? n55 or n54?

I have 2008 bmw 335xi 2dr coupe. My buddy says it's a n55 I think its a n54 engine? who is right? and is my car a e90 or e92?? please help guys!
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      12-09-2012, 05:49 PM   #2
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You have an e92 and an n54
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      12-09-2012, 05:56 PM   #3
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Quote:
Originally Posted by turbolover View Post
I have 2008 bmw 335xi 2dr coupe. My buddy says it's a n55 I think its a n54 engine? who is right? and is my car a e90 or e92?? please help guys!
smack your friend in the face and set him straight . it's an e92 n54.
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      12-09-2012, 06:58 PM   #4
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i'll get back to you.
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      12-09-2012, 09:53 PM   #5
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      12-09-2012, 10:41 PM   #6
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Thanks, did N55 start making single turbos? What does my engine N54 push for boost 8lbs stock I heard?

Damn my Subie Sti did 19lbs (tuned of course) LOL
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      12-09-2012, 11:04 PM   #7
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Quote:
Originally Posted by turbolover View Post
Thanks, did N55 start making single turbos? What does my engine N54 push for boost 8lbs stock I heard?

Damn my Subie Sti did 19lbs (tuned of course) LOL
N54 from the factory is a Twin Turbo
N55 from the factory is a Single Turbo


The N54 currently the more mod friendly platform. OEM Boost is ~8 psi & the Stock Turbos are good for up to 18 psi midrange. I'd recommend Searching the N54 Section for any questions & then posting if you can't find the answer
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