Planning on buying one, and saw a link to a decently priced cat here about 2 weeks ago. Now the search doesnt work for some reason, either way, i was wondering if anyone would have any suggestions, which brand, and their experience. thanks.

 

bump

 

If I knew more about HFC's I'd help you, I'm actually interested to see what the ansewer is as well.

I know ebay sells one, it doesn't seem like a lot of "Main" tuners shops sell them, I usually type Audi A4 High Flow Cat- into google, and see what comes up. High Flow Cats seem to run from $250-350 where a testpipe is much cheaper and requires less engineering. But if your afraid of going illegal, then just go HFC if you got the $$

Good luck

 

magnaflow

 

I have the TechTonics Tuning HFC and I like it. The only thing is that I have to use the 90 degree post cat O2 spacer to avoid getting a CEL.

 

what year is your car?all newer cars (around 2000+) pretty much came stock with "high flow" cats. its technically not a high flow cat, but theyre not much different from one.

 

My car is a 2002. I contacted Awe-Tuning and asked them what cat to use with their exhaust and the GIAC FXK03 software and the TT HFC was recommended.

http://www.audigeeks.com/forums/index.php?topic=1810.0

 

This is a good one.http://www.tantrumwerks.com/html/18exhaust.html

 

ive got techtonics its pretty sick

 

Thanks boostfed, thats the one i was looking for to begin with.