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      07-25-2012, 02:54 PM   #68
dkdariusz555
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Drives: 2012 BMW E92 M3
Join Date: Aug 2011
Location: NJ, USA

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This OEM MOD w/ secondary cat delete sounds even better! I had ACM do this just recently where they just take off the secondary cats, free up roughly 10-15 bhp, and adds an even louder and more aggressive tone to compliment the ACM MOD. Plus, the secondary cat delete is cheap, so getting both done at the same time makes sense. I'll try and post video soon!