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BMW 3-Series (E90 E92) Forum
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My custom exhaust DP's ..review and vids
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01-21-2008, 02:25 PM | #23 |
اوليسيس
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did they keep the housing of the primary cat and hollow it out or replace it with a pipe? Because if they kept the housing and just gutted it out, you will have turbulence with the exhaust flow.
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01-21-2008, 05:51 PM | #25 |
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02-05-2008, 07:16 PM | #28 |
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02-27-2008, 07:44 PM | #29 | |
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Quote:
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02-27-2008, 10:19 PM | #31 |
Perf BMW mag issue 147, 159
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very impressive sound imo..
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