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BMW 3-Series (E90 E92) Forum
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muffler and secondary cats delete with quad exhaust
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| 11-04-2015, 05:23 PM | #1 |
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New Member
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Rep 7
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muffler and secondary cats delete with quad exhaust
i already have muffler deleted with dual tips, i'm willing to delete the cats and put quad tips. Am i gonna feel torque loss? The sound will be louder?
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