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      11-29-2012, 02:53 PM   #6
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Drives: E90 M3
Join Date: Sep 2008
Location: Spinnin at 8k

Posts: 4,148
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I just went from Akra rear section to full evo and noticed that you hear much more intake sound that can sound like a loud hiss when you first hear it. Much freer "breathing" setup that seems to amplify the intake noise. I checked my clamps again after a couple of weeks to make sure everything was tight and found no issues.
08 E90 | Jet Black / Black | 6MT
Mods: RAC RG63 w/ Pirelli Corsa 255F/285R | Akrapovic Evo Exhaust | OEM Blacklines
Winter Setup: OEM 18s w/ Nokian Hakkapeliita R 245/40-18
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