cats, emissions- and power!

Kerry Griffith i2k at
Mon Dec 26 01:32:33 EST 2005

Hi Chuck,

Casual inspection of the exhaust system appears to reveal a not-so-easy 
project when it comes to bolting and unbolting cats since they're part 
of a larger section. I've always been curious as to how the car would 
run with gutted cats or "test pipes", and I seem to recall varying 
opinions on the list.
The cat on my ur-Q was somewhat clogged but was very easy to unbolt and 
reinstall, so it made a very substantial difference when I er, 
accidentally knocked out the guts of the cat in an attempt to improve 
the flow.

Is there any consensus on
1. the power delivery/output if one were to install less restrictive 
piping but keep the remainder of the system stock and
2. is removal/replacement as difficult as it looks compared to the ur-Q?

Happy Holidays to All,

happily driving my '91 that just turned 120k miles after passing on an 

BTW- if anyone knows of a nice set of ur-S4 wheels for sale, please 
contact me. thanks.

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