Quote:
Originally Posted by MPDano
This is what I had put on my 928 a couple months back. In California, you MUST get a Cat that is Calif Approved and WILL have the numbers stamped in Big Legible Letters/Numbers. Any YES, they check with either a mirror on a stick or they get under there on a roller.
Magnaflow Part # 36037
Not sure if this is a Magnaflows High Flow Cat? Anyone know?
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It's getting clearer. . . . thanks for the pic!
I looked up the Magnaflow part you provided and it was $112.50! I'm surprised. I thought something like that would be much more expensive. The car I'm considering is an S4, though. So I would need TWO, right?
I tried to find the cost of an X-pipe, and the only one I could find was from 928 Int'l for $370 plus $60 shipping. They sell high-flow cats also, that apparently work WITH the X-pipe. Those are $400 for a pair.
The reason I'm asking is that I may have to deal with this in the near future--CA car with an X-pipe and original factory cats available. Original cats would have to be installed for smog and then question become whether to put X-pipe back on, or maybe put a high flow cat on in the first place and just let it be. I need to find out how much a good high-flow aftermarket cat would be.
Just to summarize so I know I'm thinking correctly:
FACTORY original cats are fine, assuming they are still working.
Depending on whether the X-pipe is flanged/bolted to the cat-back section of the exhaust, swapping them in-out is a more or less difficult job.
A high-flow, CARB-legal aftermarket cat is an alternative that eliminates any need for swapping AND could be installed with the X-pipe left in place?
An X-pipe might provide an extra 20-30 HP (???), while a high-flow cat will SAVE, what, another 5-6 (compared to stock cats) ???
Here are links to the 928 Motorsports page with THEIR X-pipe, hi-flow cat products. I don't think the X-pipe on the car I'm thinking about is from this vendor though....
http://www.928motorsports.com/parts/headerxpipe.php
and
http://www.928motorsports.com/parts/catalytic_converter.php
Well, I THOUGHT I was getting it clear....
Please don't ban me ;-).