Hey h-t I just got done putting a new exhaust and a new high flow cat to my teg the other day and today I was driving on the highway my cel came on and I checked the code it was 67(cat converter) it seems, anyone knows how I can fix it, although I put in a new cat already? plez help

 

is it an aftermartet high flow cat, could you see str8 thru it?
if so , thats your problem, u need to put on the original cat

it might be possible to use a o2 fouler, its pretty much a o2 bung extension, a few bucks at autozone/oreilys works for some

 

Yeah it's a aftermarket cat but thanks for the input I will try that.