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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 > Anyone take out the first set of resonaters(sp?)?



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      04-08-2011, 09:13 PM   #1
Dlu69
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Anyone take out the first set of resonaters(sp?)?

Hey guys, I got bmw perf exhaust, which gets rid of the second res, but anyone straight pipe the first set of resinators?

sound better? more power? anything differnt?

r is that 2ndary cats..?

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      04-08-2011, 09:40 PM   #2
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There is only one resonator as far as I know, and two sets of cats. Getting rid of the secondary cats will definitely make it louder.
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      04-08-2011, 11:37 PM   #3
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Quote:
Originally Posted by Chewy734 View Post
There is only one resonator as far as I know, and two sets of cats. Getting rid of the secondary cats will definitely make it louder.
+1
I have midpipes that delete the secondary cats and its very loud with my meisterschaft exhaust
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