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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 > Duals from header to dual in/out magnaflow?



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      06-23-2010, 03:18 PM   #1
MOTO69JOE
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Duals from header to dual in/out magnaflow?

If I removed my cat and ran dual piping from the headers to a dual in/out magnaflow would there be room to accommodate dual pipes running along the underside to the back? I think the piping size is 2.5"? The magnaflow I was considering is P/N 11379. This would of course feed into a quad set up...
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      06-23-2010, 03:45 PM   #2
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Yes it will work but your going to want a magnaflow with some packing in it if you lose the 2nd cats and res also.

Here are some examples for you:
Straight setup with pic (Koreez88's setup)
http://www.e90post.com/forums/showthread.php?t=371289
Also (headlee103's setup):
http://www.e90post.com/forums/showthread.php?t=379188
Also (sorost's setupt):
http://www.e90post.com/forums/showthread.php?t=369869
Horizontal setup with pic (Vicnumb7's setup)
http://www.e90post.com/forums/showthread.php?t=239140
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      06-09-2012, 02:31 PM   #3
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anyone use Magnaflow 11379 instead of secondary cats to eliminate drone
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