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DDubbs · 07-21-2011, 08:14 PM

Dave, thanks for the tip. I think it's time invest in a Bentley manual so I can start doing something about these issues.

A new wrinkle:

I've been getting an exhaust groan at 2500 rpms which is new. I was at Southampton Imports getting a 2nd hand a/c condenser and asked the mechanic there about it. He says the cat dampens a lot more sound than people give it credit for. If mine's making noise and is throwing the code maybe the cat itself is going bad after all.

Anybody on the board replace their cat and notice a difference in acceleration or mileage? Or is this just a PITA maintenance item with no noticeable benefit?

07-21-2011, 08:14 PM	#9
DDubbs Junior Member Join Date: Dec 2007 Location: Philadelphia Posts: 21 iTrader: (0) Photo Gallery	Dave, thanks for the tip. I think it's time invest in a Bentley manual so I can start doing something about these issues. A new wrinkle: I've been getting an exhaust groan at 2500 rpms which is new. I was at Southampton Imports getting a 2nd hand a/c condenser and asked the mechanic there about it. He says the cat dampens a lot more sound than people give it credit for. If mine's making noise and is throwing the code maybe the cat itself is going bad after all. Anybody on the board replace their cat and notice a difference in acceleration or mileage? Or is this just a PITA maintenance item with no noticeable benefit? __________________ I have no signature.