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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > Who's interested in SS Headers?



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      10-09-2012, 03:05 PM   #67
mapleridge
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Quote:
Originally Posted by Johnny D View Post
Best I can do...

Z4


325/330

Thanks for the pics. I searched the one on realoem as well. I want to see what they look like so I can compare against 3 series models. I also want to compare against 5 series, and X3's that carry the same engine. I already heard that 1 series manifolds are the same.


Quote:
Originally Posted by TSM330i View Post
My buddy and I are building a Z4 race car (2007 3.0si Coupe with the N52) and we are more than likely going to be doing this:
See post #3
http://www.e90post.com/forums/showthread.php?t=382656

More info here too:
http://www.e90post.com/forums/showth...ght=cat+delete

Should be much cheaper than a true SS header, plus no waiting for someone to develop it. Dyno tested 15rwhp without a tune is really good. Hopefully with an off-road tune we end up getting about 20-25 crank hp added.

For those running your cars on the street, make sure you don't have an issue passing emissions tests. If you remove the cats, there will more than likely be an issue passing the test.

BMS downpipe fix should ensure you pass emissions. I am doing that as well. I have a set of manifolds coming my way. ETA friday. I have tried to book time on the 20th to have them cat delete plus dyno. I will keep you all posted.
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      10-09-2012, 11:13 PM   #68
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Here are some manifolds said to fit an E60 and a Z4 per the ebay
description. N52B30A



The dimensions after the collectors seems to be all different.

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      02-21-2013, 01:39 AM   #69
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sorry to bump an old thread, but what ever happened to this?
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