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BMW 3-Series (E90 E92) Forum
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Secondary cat delete on stock e92 exhaust system
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| 04-02-2011, 07:37 PM | #1 |
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Drives: e92 335i
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Location: So. Cal
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Secondary cat delete on stock e92 exhaust system
Hey guys,
I wanted your input on deleting the secondary cats on my e92 335i exhaust system. So far I have deleted my stock mufflers and replaced them with magnaflow mufflers. The car is a tad louder than golf tee mod, but I want it to be louder. I seen youtube videos of the secondary cat delete and seems to make the car louder even on a stock w92 335i. I am looking for noise compared to performance. Do you guys know if this is going to effect emission later in the future especially since i live in so. cal? Basically I am going to keep my primary cats in place, but put straight pipes where the secondary cats are. I am just worried about emissions test in the future and not being able to get through. My other option was to get catless dp, but the price is more and I would need to get an o2 sim also which would cost me up to 600 bucks compared to just a quick delete of the secondary cats. Well if anyone in california or other states that can help me out this in regards to noise level of secondary cat delete and the emission test that would be helpful. Thanks in advance
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| 04-04-2011, 04:15 AM | #2 |
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Drives: Black e92 335i
Join Date: Apr 2010
Location: Brampton, Ontario
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Im thinking of doing the same thing as you
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| 06-14-2011, 12:52 AM | #3 |
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Just wondering if you ever went ahead with your setup to see if the secondary cat delete made the note louder? And are your magnaflows the breifcase or tubes??
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| 06-17-2011, 03:49 AM | #4 |
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how much does it cost to remove them?
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| 06-17-2011, 05:03 PM | #6 |
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do it.. keep the 2nd cats for possible future use.. if you fail smog (probably just visual) just get them welded back on...
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