ClubWRX Forum banner

1 - 3 of 3 Posts

·
Registered
Joined
·
417 Posts
Discussion Starter #1
is the o2 sensor found right after the dp knwn as the precat or postcat sensor? I didnt know because its after the uppipe which has cats but before the one on the exhaust so any help would be apprieciated
 

·
Premium Member
Joined
·
6,501 Posts
The sensor on the midpipe is the post cat or cat efficiency sensor.I would just use a oem replacement.
 
1 - 3 of 3 Posts
Top