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BMW 3-Series (E90 E92) Forum
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no cats, no res, no muffler
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| 07-07-2009, 12:37 PM | #1 |
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no cats, no res, no muffler
what kinda errors would i get if i straight pipe right outta the headers to a magnaflow muffler?
or can i take duals out of the cats instead of a single n run those to two mufflers?
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e90 330 > e90 LCI N54 > e70 x5 50i > f12 M6 GC > f15 x5 50i > f90 M5
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| 07-07-2009, 12:39 PM | #2 |
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You'd be fine. You just need 02 sims. Tons of people are running catless down pipes. From what I understand the 02 sensors are in the down pipes and only pertain to the first set of cats. Anything after the down pipes can be changed without throwing codes or needing sims.
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| 07-07-2009, 12:40 PM | #3 |
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Drives: 2007 JB/Saddle E92 335i
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I deleted my secondary cats and they were fine. As long as you had 02 sims for the primaries, you'd be fine.
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| 07-07-2009, 01:08 PM | #4 |
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perfect, im getting on that tonight, Ill post sound clips soon too! Thank youuu
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e90 330 > e90 LCI N54 > e70 x5 50i > f12 M6 GC > f15 x5 50i > f90 M5
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| 07-07-2009, 01:10 PM | #5 |
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Sweet I want to see how it turns out!
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