our cars have 4 cats? or just the front 2?

badass1g · 10-12-2009, 11:57 PM

also how many 02 sensors? with 02 sims and catless dp's would that throw a red flag if i took my car in for oil service change? thats alot of work to have to keep taking them out.

Donald-335i · 10-12-2009, 11:59 PM

4 cats two 02's sensor's

should not be a problem for a oil change,

joec500 · 10-13-2009, 12:04 AM

Quote:

Originally Posted by Donald-335i

4 cats two 02's sensor's

should not be a problem for a oil change,

2 o2 sensors each, so a total of 4 o2 sensors.

2 precat and 2 postcat

10-12-2009, 11:57 PM	#1
badass1g Captain 51 Rep 646 Posts Drives: 07 335i Join Date: Oct 2009 Location: utah iTrader: (7)	our cars have 4 cats? or just the front 2? also how many 02 sensors? with 02 sims and catless dp's would that throw a red flag if i took my car in for oil service change? thats alot of work to have to keep taking them out.
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10-12-2009, 11:59 PM	#2
Donald-335i Banned 191 Rep 3,588 Posts Drives: The Hoes Crazy! Join Date: Nov 2008 Location: Central NJ iTrader: (13)	4 cats two 02's sensor's should not be a problem for a oil change,
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