Ive just installed my racepipe on my '88 and i noticed theres some o2 sensor or somthing, dunno, connected to my cat. what do i do with that extra sensor handin there now that ive installed the pipe? i just plugged up the hole...is that alright? l dont know what the purpose/effects that will have on it..thanks for your inputs

the racepipe sounds very loud with my apexN1 exhaust.. i feel a difference at high end rpms. much more fun to drive now
88se
engine rebuilt
Bonez intake
Bonez racepipe
apex N1 exhaust

 

That's not an O2 sensor , it's the cat temp sensor. If there's no cat it's pretty much useless.