M42club.com - Home of the BMW E30/E36 318i/iS
DISCUSSION => General Topics => Topic started by: Black Box on November 20, 2006, 06:38:15 PM
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Im going to getting my exhaust done. I already bought the super turbo dynomax muffler w/ 2.25 in/out. Now I need a universal cat since mine is rusted through. Im looking at the magnaflow universals and they are weld on. So, my dumb question is do I need the same size in/out as my muffler if I want to run 2.25 piping or do I need to get a bigger or smaller in/out size?
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Run the 2.25 through the cat.
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I've got a magnaflow universal on my 318. before i had it I couldn't pass emissions and once I put it on i had no trouble! Very good product