Thread: 4 resonated or high flow cats????
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      11-13-2012, 01:16 PM   #2
benzy89
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Drives: '08 E90 335i
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2008 BMW 335i  [7.50]
If you're more interested in power, go fully catless with 4 resonators


The HFC will quiet it down a bit, but that might be necessary if it's your DD
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