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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Cobb stage 2 users



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      12-04-2011, 01:42 AM   #89
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Originally Posted by bmwm3redblack View Post
As i have understood there is no real difference between stage1 and stage2 ???

So if you want to feel the power after stage1 you should go stage2+ ????
Understood from where / whom? Cobb themselves haven't yet said that, AFAIK.

It would be very odd IMO adding DP's wouldn't provide any gain at all, or that their stage 2 maps would be the same as their stage 1 maps.

They've only done their dyno on the 1 to 2+, and posted it here:

http://www.e90post.com/forums/showthread.php?t=589102
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      12-04-2011, 10:48 AM   #90
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The main difference between stg 1 and stg 2 (with DP's) is torque, not HP. I dyno'ed before and after stg 1 and stg 2 and the HP difference was maybe 5hp. Not significant at all and could of easily been within the weather tolerances. The torque really jumped up a bit (+40 IIRC).

The HP gain comes from going to stg 2 +.
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      12-06-2011, 09:09 AM   #91
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Hi!
If I have FMIC, DCI and DP but OEM exhaust can I run stage 2 then?
For stage 2+ TBE is needed if I understand it correctly?
Is there an HP estimate on how much I would gain if I changed the exhaust?
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      12-06-2011, 09:30 AM   #92
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Quote:
Originally Posted by tjockochgammal View Post
Hi!
If I have FMIC, DCI and DP but OEM exhaust can I run stage 2 then?
For stage 2+ TBE is needed if I understand it correctly?
Is there an HP estimate on how much I would gain if I changed the exhaust?
Yes, you can actually run Stage 2+. Exhaust is recommended but not required. Many people on here are running Stage 2+ with factory exhaust. Exhaust gains are very minimal for this car.
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      12-06-2011, 11:45 AM   #93
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Ok thanks. When it comes to performance what would you reckon be the next step for me?
Im not interested in meth for now but is there any other major things I can improve?
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      12-06-2011, 11:51 AM   #94
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Quote:
Originally Posted by tjockochgammal View Post
Ok thanks. When it comes to performance what would you reckon be the next step for me?
Im not interested in meth for now but is there any other major things I can improve?
If you are not interested in meth or Nos, then you are just about at the limits with Cobb stg2 +. There is currently no meth or nos map for the cobb but they are working on one.

Things to consider:

New Charge pipe
New BOV's or DV's

The OEM charge pipe and DV's are known to leak higher levels of boost. Won't really be a big performance gain but it's good for the life of the turbos. Other then those, and the exhaust (which would be minimal performance gains but, again, better for the turbos), there isn't much left besides taking out weight.
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      12-06-2011, 11:57 AM   #95
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Quote:
Originally Posted by tjockochgammal View Post
Ok thanks. When it comes to performance what would you reckon be the next step for me?
Im not interested in meth for now but is there any other major things I can improve?
Buy exhaust/ blow off valve/ cosmetics/ anything you want. Run race gas and COBB's race map when you need more power.
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      12-06-2011, 12:04 PM   #96
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Quote:
Originally Posted by tjockochgammal View Post
Ok thanks. When it comes to performance what would you reckon be the next step for me?
Im not interested in meth for now but is there any other major things I can improve?
Turbo upgrade
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      12-06-2011, 12:41 PM   #97
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LSD+Turbo upgrade
Fixed
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      12-06-2011, 01:18 PM   #98
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Fixed
+1 for LSD. i have no traction till 4th gear lol.
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      12-06-2011, 03:02 PM   #99
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No traction on 4th gear?
LOL!
I want that too
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