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      01-12-2013, 11:40 AM   #4
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Drives: BTG 2014 - 3 Laps
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Quote:
Originally Posted by chriszeh View Post
02 sensors are before and after the primary cats so should be okay with just secondary removed but wont gain power this way either.
+1

Gutting out the secondaries and doing a OEM Exhaust Mod should do the trick for you. Here is a DIY (costs: free 90 free) for the secondaries, GL!

http://www.m3post.com/forums/showthread.php?t=457202