Thread: Cat delete power loss??
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      12-15-2011, 12:57 PM   #11
Papethova
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Drives: '08 135/ '11 1M
Join Date: Oct 2007
Location: at Death Valley 127

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I definitely gained power by deleting the 2ary cats and the resonator from the mid pipe. Disclaimer... it was on the 135, the M mods are still pending
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