i was thinkin about gettin a carsound cat for my 97, and i was wonderin if it makes a big difference and if its gonna cause n e probs like runnin rich or n e thing.

 

no difference really. Once i put it on i ran extremely rich. I also have a catback and a dc header. Once i had installed it my car ran like crap. I got it dynoed and it was extremely rich. My A/F was between 11.5 and 12. Then i got it tuned and it ran so much better. I had to add a fuel regulator to get my a/f up in t he mid 13's.

 

but i thought it was better to get a carsound then one of the cheap cats because they have the honeycombs in them and they wont make ur car run rich. is that wat u have a carsound cat?

 

yeah i have a carsound cat. The reason is that i have the full exhaust from the header back and when i put everything on the ecu couldnt compensate for all the air that was passing through with the fuel. thats why i had to get it tuned cuz our ecu's arent learnin ones so everytime you add a mod you have to get it tuned to get it the right power from them. This is what i know, if somebody else knows otherhand please go ahead and correct me.

 

A Carsound cat won't necesarily make you run rich, Preludes run rich from the factory and require tunning to get an ideal A/F. Anyways, about the cat, before I use to have a test pipe and would run 9.1 1/8 mile times at 77mph, then I installed a Carsound cat because of CA. emissions and managed to run 9.2 1/8 times at 76mph, 9.1's could be reached it just depended on the climate on that day. Anyways, I say go ahead and get a Carsound cat they are just as good as running a test pipe.