Hey i have a question about the exhaust system on my Z.
If i take my cats off will my check engine come on.
has anyone had any problems doing this.

 

search


and sometimes, depends on the year and if you have non-foulers

 

well i have a 07 and i just want the cats gone.

and its a nismo if that means anything

 

..... search, search, search!!!


But to answer, yes, if you fail to utilize your O2 sensers the CEL will come on.
You can go with Hi-Flow cats that usually have a fitting for the sensers, unlike test pipes!!!

 

okay okay ill do my homework on this but i was just hoping that someone has already done this. but its all good thanks for the help

 

Err, test pipes usually have fittings for the sensors...

 

It's been done by everyone and their mothers, that's why they're telling you to search. I don't even own a Z and I know the answer

 

It will be very loud.

 

okay i checked on berk test pipes and from what they said and i called them, they said its a 50/50 chance the CEL will come on and if it dose come on put o2 extenders on to back off the o2 from the pipe.

what yall think about all that? how could moving the o2 back out about a inch from the pipe make a difference.

 

Study the factory manual. Look at the relationship between Oxygen sensor #2 and OBDII.

 

Oxygen sensor #2 is an electronic device. It has a positive and negative connector. Electricity flows positive to negative.

The sensor is looking for particulates (such as carbon). Lots of particulates and electricity flows unimpeded. Few particulates (just air) and electricity flows poorly.

Moving the sensor OUT of the air stream ensures that electricity flows poorly.

 

ooops, I was thinking of something else

All the people Ive met though WITH test pipes(not too many) had a CEL