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      09-02-2010, 11:58 AM   #55
Doug007
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Drives: Spacegrau 2009 335i 6MT
Join Date: Feb 2010
Location: Houston, TX

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Quote:
Originally Posted by e92_m3 View Post
Hmmm, power delivery would be a lot better IMO if the cat was deleted. Imagine that, no more restrictions. May sound better as well. I would take a free-flowing exhaust any day!

However, there might be drawbacks when the cat is deleted:

1) Maybe too loud for some.

2) The cat should be re-installed when it's time for a smog check.
Turbochargers work great to reduce exhaust noise. Check out the underside of a Neon SRT4 sometime, no mufflers!
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2009 Spacegrau 335i