BMW M3 Forum (E90 E92) - View Single Post - AA catless X-pipes or Challenge Race X-pipes?

pbonsalb · 02-09-2012, 09:45 AM

See Post #9 and #10. He wants to spend the extra money on a Challenge because it has been around longer. He does not seem to trust EAS's recent review and dyno test of the Mastermind:

http://www.m3post.com/forums/showthread.php?t=642948

02-09-2012, 09:45 AM	#14
pbonsalb Lieutenant General 5234 Rep 10,614 Posts Drives: 18 F90 M5, 99 E36 M3 Turbo Join Date: Feb 2011 Location: New England iTrader: (4)	See Post #9 and #10. He wants to spend the extra money on a Challenge because it has been around longer. He does not seem to trust EAS's recent review and dyno test of the Mastermind: http://www.m3post.com/forums/showthread.php?t=642948
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