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ChrisZang · 06-01-2009, 11:38 AM

Hi,

this question came up over a discussion with some of my buddies the other day and I was hoping that some members here could settle the dispute.

When removing one sets of cats, which set will most likely bring me into LESS trouble when smogging the car? (or in other words which set is "more green").

My hypothesis is that the set of cats closer to the muffler is doing the "heavy lifting" and the one closer to the headers is doing less of the work.

But my buddies disagreed.

So who knows the answer?

06-01-2009, 11:38 AM	#1
ChrisZang Registered User Join Date: Mar 2006 Location: San Carlos, CA 94070 Posts: 1,450	cat removal Hi, this question came up over a discussion with some of my buddies the other day and I was hoping that some members here could settle the dispute. When removing one sets of cats, which set will most likely bring me into LESS trouble when smogging the car? (or in other words which set is "more green"). My hypothesis is that the set of cats closer to the muffler is doing the "heavy lifting" and the one closer to the headers is doing less of the work. But my buddies disagreed. So who knows the answer? __________________ I still wave at Boxsters, but they no longer wave back :-( 2002 Boxster S "Violet" (sold but not forgotten) 2009 Carrera 4S "Kelsey" (current ride) 2015 FIAT 500e "Nikki" my commuter car