after i did the swap about 3 months ago i never thought of getting a full exhaust set up. Im still running my b6 exhaust w/ the cat and i think im having restriction on the cat cuz just 2 days ago my cat started making this rattling sound that i think i mess up for running rich for about 3 months. is there any difference between the 1.6 and 1.8 cat? or they're the same.

 

my cat is making a rattling sound to. i gotta get a hi-flow one fast.

 

hmm..... i have notice no one or not much people knows alot about the 323 or mazda's only the basic ****. I guess thats wut i get for buying the 323. its kool cuz it makes the car unique and finding something diff. and puting in ur 323 makes it stand out from other 323's.
i have some tricks on my 323 that made it pretty quick. and only spend alil over a hundred. Id like to let everyone know but then again if i cant get anything out of these then ucant either.
no wonder the pro's are only hitting 16's. or 15.9 WOW!
peace!