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DeutschRennfahrer · 02-06-2015, 09:18 PM

If I decide to leave the cats and simply replace the stock muffler box with a Magnaflow, will I really notice that much of a difference in sound as apposed to removing the secondary cat?

02-06-2015, 09:18 PM	#11
DeutschRennfahrer Private First Class 39 Rep 115 Posts Drives: 2006 Z4 3.0i - Saphire Black Join Date: Jan 2015 Location: Nashville, TN iTrader: (0)	If I decide to leave the cats and simply replace the stock muffler box with a Magnaflow, will I really notice that much of a difference in sound as apposed to removing the secondary cat?
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