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Tru2Chevy · 03-29-2008, 08:45 PM

All they do is help to heat up the cat when you first start the car. The faster the cat gets up to operating temp, the faster it can burn off the crap in your exhaust.

- Justin

03-29-2008, 08:45 PM	#2
Tru2Chevy Co-Founder / Site Admin Join Date: Jul 2004 Location: Ewing, NJ Posts: 22,476 iTrader: (8) Social Networks:	All they do is help to heat up the cat when you first start the car. The faster the cat gets up to operating temp, the faster it can burn off the crap in your exhaust. - Justin __________________ 1999 Camry - Beigemobile DD 2002 Suburban - Wife's DD 2004 Grand Cherokee - Not running / Project / Selling?