My hardworking 2000 A6 has 118k miles and needs new catalitics. Stock are $1,400 each ++. I've wanted to tweak performance for some time anyway.... so does anyone have a suggestion.?
XtreamFlow in Fresno CA sells performance cats on the net and sez they have the only CARB approved aftermarket cats in the state.
Observations, comments anyone? Thanks!
Pete van Nuys
Great question - noticed that you posted in two forums.. i'm going to close this one and let responses go to your post in the proformance forum so no one gets confused. Here.
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