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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 > Wavetrac in n55



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      04-20-2011, 10:37 PM   #1
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Wavetrac in n55

Hey guys, i got a friend who has for sale a wavetrac lsd for sale. Im a newbie in lsd, any thougth? He has a 335i std my car is a n55 at. Will it work? I have read many theads that people love this lsd and performance wise its a good deal, just need some feedback.
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      04-21-2011, 07:05 AM   #2
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Well the gears would be different, but would it work I am not sure I think it would but the best persom to ask would be Harold at HP Autowerks, he is a vender on this forum.
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      04-21-2011, 09:06 AM   #3
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I think the N54 and N55 are mated to the same transmission, so the diff should have the same final gear. It should be the same.
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      04-21-2011, 09:10 AM   #4
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Auto and manual transmissions use different final drives.
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      04-21-2011, 10:47 PM   #5
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If you are swapping the entire pumpkin you will be changing your final drive gears.

Manual = 3.08
Auto = 3.46

You can have a diff builder remove the diff from housing and have them install it into your housing if you guys both have the same size ring gear.
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      04-22-2011, 08:54 AM   #6
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Im going to have to see the lsd info and get back to you guys
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      04-22-2011, 09:41 AM   #7
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Quote:
Originally Posted by BerkTechnology View Post
If you are swapping the entire pumpkin you will be changing your final drive gears.

Manual = 3.08
Auto = 3.46
DCT = 2.56
1M = 3.15


You can have a diff builder remove the diff from housing and have them install it into your housing if you guys both have the same size ring gear.
I added a couple.
I'd love to get my hands on a 3.15!
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      04-22-2011, 07:57 PM   #8
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Getting the Wavetrac installed Monday from HP autowerks in Santa Barbara, pepe you should def do it I was thinkin about it for such a long time and so relieved I pulled the trigger can't wait to see that power put down properly
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      04-22-2011, 08:28 PM   #9
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Quote:
Originally Posted by makarov88 View Post
Getting the Wavetrac installed Monday from HP autowerks in Santa Barbara, pepe you should def do it I was thinkin about it for such a long time and so relieved I pulled the trigger can't wait to see that power put down properly
What model are you getting? Let me know in order to verify if the one that they are selling works?
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      04-22-2011, 09:03 PM   #10
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Quote:
Originally Posted by Mr. 5 View Post
I'd love to get my hands on a 3.15!
Nice find, i always thought it would have the same "iS DCT" final drive on the 1M. Now you got me kinda wanting a 3.15 too
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      10-13-2011, 11:33 PM   #11
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Quote:
Originally Posted by Pepe_pr View Post
Hey guys, i got a friend who has for sale a wavetrac lsd for sale. Im a newbie in lsd, any thougth? He has a 335i std my car is a n55 at. Will it work? I have read many theads that people love this lsd and performance wise its a good deal, just need some feedback.
Auto to Auto or manual to manual it will fit fine.
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      10-13-2011, 11:40 PM   #12
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n55 is not like n54. for n55 you need to cut off a lot of parts, but n54 is directly bolt on.
you need to think about it
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      10-13-2011, 11:44 PM   #13
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Quote:
Originally Posted by ian2002525 View Post
n55 is not like n54. for n55 you need to cut off a lot of parts, but n54 is directly bolt on.
you need to think about it
Engine family has no bearing on the ring gear needed to be cut off or not. It is more transmission type driven now. Earlier in 2007, production date actually mattered.

N54 is not a direct bolt on for Feb. 2007 and later manual transmission cars. As a matter of fact, LSD is not a bolt-on part in any case. Professional installation and setup is needed for proper function and longevity.
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      10-14-2011, 08:06 AM   #14
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I swapped mine for a quaife in the second week of owning the car. Cant immagine driving a car without one. Its not an M diff but still helps a lot
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