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m4a1mustang · 01-27-2010, 07:45 PM

If any of the catalyst material breaks apart you are going to hear it clunk around in the pipes. Just had to have a cat replaced on my gf's CLK 500.

01-27-2010, 07:45 PM	#3 (permalink)
m4a1mustang A True Z Fanatic Join Date: Feb 2009 Location: Northern VA Posts: 55,385 Drives: on two wheels Rep Power: 6963	If any of the catalyst material breaks apart you are going to hear it clunk around in the pipes. Just had to have a cat replaced on my gf's CLK 500. __________________ - Steve Zs & Coffee - Saturdays at 10AM in Fairfax, VA and Columbia, MD (Click the banner!) LIKE us on Facebook!