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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 > N55 owners, we have a surprise for you.... :)



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      09-15-2010, 02:01 PM   #23
cn555ic
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Quote:
Originally Posted by cstavaru View Post
Just remember that when installing this downpipe you will remain with NO OTHER CATS, unlike the N54 case. Rotten egg smell anyone ? Smog test anyone ?
I have never gotten that rotten egg smell!
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      09-15-2010, 02:02 PM   #24
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ahhhh i just impregnated myself!!! i want it now and i dont even have my damn car yet..lmao...ok!!! umm super big question, will you be using a extended bung or the o2 sensor so it will not throw a CEL????
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      09-15-2010, 02:18 PM   #25
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Quote:
Originally Posted by maui86 View Post
will you be offering a single tubed version(not splitting) for the enevidable single piped exhausts for the 135i?
You don't want to do that. Upgrade the turbo to a (big) single and then that may become necessary. I had dual 3" catless midpipes and downpipes(the only set ever made) and I can tell ya that a single 4" exhaust would be excessive for the N55 which has virtually no heavy mods available.

Last edited by klipseracer; 09-15-2010 at 05:36 PM.
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      09-15-2010, 02:25 PM   #26
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Coool, does look expensive though
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      09-15-2010, 02:28 PM   #27
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N55 335I has no cats in the mids or resonators. 335xi's have whas looks like res or cats on the midpipes.

The can tool can clear all codes. Lucky for me they don't test smog here...
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      09-15-2010, 02:30 PM   #28
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Quote:
Originally Posted by klipseracer View Post
You don't want to do that. Upgrade the turbo to a single and then that may become necessary. I had dual 3" catless midpipes and downpipes(the only set ever made) and I can tell ya that a single 4" exhaust would be excessive for the N55 which has virtually no heavy mods available.
The n55 is already a single turbo...
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      09-15-2010, 02:30 PM   #29
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Quote:
Originally Posted by Matt@Camber-Toe View Post
Looking good...cant wait to put it on

i can gaurentee at least one more customer who wants one....local and hes been following this every step of the way


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Originally Posted by Iceberg3 View Post


MUST...HAVE...NOW!!

How bad would the smell be with these vs. the catted version?
No idea. Yet.

Quote:
Originally Posted by maui86 View Post
will you be offering a single tubed version(not splitting) for the enevidable single piped exhausts for the 135i?
We may, yes.

Quote:
Originally Posted by blisstik View Post
Does this mean the N54 versions will go on sale because you know, N55s are newer? =D
Sadly, the N54 downpipes have not gotten any easier to fabricate, by hand, one at a time ;(

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MOM!!!

i mean DAMN!!!


Quote:
Originally Posted by klipseracer View Post
You don't want to do that. Upgrade the turbo to a single and then that may become necessary. I had dual 3" catless midpipes and downpipes(the only set ever made) and I can tell ya that a single 4" exhaust would be excessive for the N55 which has virtually no heavy mods available.
FWIW, dual 3" has a cross sectional area of 14 sq. in. A single 4" has a cross sectional area of 12.56 sq. in. So dual 3" is more excessive, and quite a bit heavier.....

If anything, we will probably offer a 3.5" setup. 3.5" will flow well over 800hp. 4" is just going to cause ground clearance issues, and not really provide any real gains.
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      09-15-2010, 02:34 PM   #30
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Looks like it'll be a quality part but hopefully without the $699 price tag.
That's because it's made in the good ole' USA and we know the fitment will be spot on.
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      09-15-2010, 03:47 PM   #31
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Where's my surprise???
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      09-15-2010, 03:55 PM   #32
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Where's my surprise???
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      09-15-2010, 03:58 PM   #33
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I want so bad Time to save money..
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      09-15-2010, 04:13 PM   #34
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awesome
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      09-15-2010, 04:36 PM   #35
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Quote:
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The n55 is already a single turbo...
I meant 'big' single.
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      09-15-2010, 04:37 PM   #36
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I meant 'big' single.
talk to lutzperformance in tampa. they are willing to up the turbo...
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      09-15-2010, 04:37 PM   #37
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Quote:
Originally Posted by ar design View Post

FWIW, dual 3" has a cross sectional area of 14 sq. in. A single 4" has a cross sectional area of 12.56 sq. in. So dual 3" is more excessive, and quite a bit heavier.....

If anything, we will probably offer a 3.5" setup. 3.5" will flow well over 800hp. 4" is just going to cause ground clearance issues, and not really provide any real gains.
Yes, I know how to do the math. I'm speaking from experience that it would be excessive without a snail upgrade, I'm not sure where we disagree here?
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      09-15-2010, 05:02 PM   #38
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Omg I want now!!.. My tune just shipped out today and now this omg!!!! And I have a muffler delete on my car and sounds amazing it's gonna be crazy with these...

Matt I had no idea.. -_-
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      09-15-2010, 05:04 PM   #39
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We don't, just saying, dual 3" is more overkill than a single 4". That is all

Almost completed, final pics *should* be up tomorrow.
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      09-15-2010, 05:32 PM   #40
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We don't, just saying, dual 3" is more overkill than a single 4". That is all

Almost completed, final pics *should* be up tomorrow.
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      09-15-2010, 05:36 PM   #41
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Quote:
Originally Posted by ar design View Post
We don't, just saying, dual 3" is more overkill than a single 4". That is all

Almost completed, final pics *should* be up tomorrow.
Okay. I'm excited to see the finished product.
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      09-15-2010, 05:42 PM   #42
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Okay. I'm excited to see the finished product.
You and me both
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      09-15-2010, 06:02 PM   #43
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how many versions??? no cat, cat, resonated????
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      09-15-2010, 06:40 PM   #44
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Quote:
Originally Posted by 3pete3the5greekI View Post
Omg I want now!!.. My tune just shipped out today and now this omg!!!! And I have a muffler delete on my car and sounds amazing it's gonna be crazy with these...

Matt I had no idea.. -_-
LOL you just been MIA forever
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