I am overdue for an exhaust refresh on my 94 1FZ (US Spec). I don’t have emissions testing. My PAIR is gone and I have my O2 sensors relocated to the exhaust manifolds where the PAIR was. From searching the forum, it seems like most of the difference between the OBD1 spec exhaust and the OBD2 spec exhaust seems to be the number/location of the O2 sensors and number of cats. Since my O2 sensors are already moved, is there any reason I can’t use a 95+ exhaust on my ‘94? Any other considerations in play here where things won’t match up? I don’t particularly care about keeping the cats intact either way since I won’t need to have the truck inspected, I just want to make sure the ECU is getting good data from the O2 sensors.
Edit: my main goal here is to find a bolt on exhaust I can install in the truck myself. I am decent with a wrench but I don’t know how to weld, so fabricating something is probably outside my skill level.
Edit: my main goal here is to find a bolt on exhaust I can install in the truck myself. I am decent with a wrench but I don’t know how to weld, so fabricating something is probably outside my skill level.