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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 > Headers Upgrade for E90 328i X



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      05-04-2015, 09:59 PM   #23
Tom Droze
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Quote:
Originally Posted by TheAxiom View Post
What about stock muffler, AFE headers and SS mids?
I may be nuts but. . .

http://www.turnermotorsport.com/p-17...r-muffler.aspx
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      05-05-2015, 02:02 AM   #24
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Quote:
Originally Posted by Tom Droze
I have installed the AFE catted headers, I have the PE, and when I had the headers installed I was running with the secondary cats deleted. I can tell you for facts certain the car is way too loud with this set up and it's not even a cool loud. I had 9 inch resonators installed in the Supersprint mid pipes and that only marginally helped with the noise. I then removed the mid pipes and reinstalled the secondary cats and this has produced the best sound so far... until you hit about 4,000 RPM and then it's fart pipe city. Based on my experience and what I have read in doing my research, if you install the AFE catted headers, I would leave the rest of the exhaust stock, unless you like obnoxious noise. I will be making additional exhaust changes here shortly, but I am just trying to get my head around my next move.
How was power going back to stock midpipes (secondary cats)? Loss in power?
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      05-05-2015, 02:55 AM   #25
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Quote:
Originally Posted by Tom Droze View Post
why don't you get my old eisenmann race muffler, it's in norcal, sold it to another local that's not using it, we both removed the tips though, just weld it back on. when i say old, it's the real race muffler, up until around 2010, race was race, sport was sport, until eisenmann made it softer and renamed their race to be sport, and sport is lower that sport sound.
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      05-05-2015, 02:58 AM   #26
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Quote:
Originally Posted by Tom Droze View Post
I have installed the AFE catted headers, I have the PE, and when I had the headers installed I was running with the secondary cats deleted. I can tell you for facts certain the car is way too loud with this set up and it's not even a cool loud. I had 9 inch resonators installed in the Supersprint mid pipes and that only marginally helped with the noise. I then removed the mid pipes and reinstalled the secondary cats and this has produced the best sound so far... until you hit about 4,000 RPM and then it's fart pipe city. Based on my experience and what I have read in doing my research, if you install the AFE catted headers, I would leave the rest of the exhaust stock, unless you like obnoxious noise. I will be making additional exhaust changes here shortly, but I am just trying to get my head around my next move.
make quick iphone clips so we can all judge for ourselves, especially me, so i know which route to take so i don't have to play with my number 8 exhaust set up
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      05-05-2015, 07:48 AM   #27
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??
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      05-05-2015, 07:51 AM   #28
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Quote:
Originally Posted by Tom Droze View Post
i'd do it, you get a free turner window decal.

I think rasp would be at an all time low too.
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      05-05-2015, 08:35 AM   #29
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Quote:
Originally Posted by Mike. View Post
i'd do it, you get a free turner window decal.

I think rasp would be at an all time low too.
The Dinan exhaust is also on my short list.
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