July 4, 200520 yr Hello all. I built a nice 2.25" I.D. pipe downpipe for my 1987 GL-10. I installed it all nice like....then I realized I forgot the o2 hole. DANG IT. So I'm running without it for now...which it doesn't seem like it has changed much....maybe it's been dead? Any suggestions?
July 4, 200520 yr I'm running without one right now. Not really a big deal.. Makes your gas mileage a little worse. Rermember, the ECU ignores the 02 sensor when you are on boost, so the best way to deal with it is to always be on boost :-p
July 4, 200520 yr I'm running without one right now. Not really a big deal.. Makes your gas mileage a little worse. Rermember, the ECU ignores the 02 sensor when you are on boost, so the best way to deal with it is to always be on boost :-p yup, i dont run one either. im not always into bost, but it ignores it at full throttle too, so i have no need for one
![[HTi]Johnson](https://www.ultimatesubaru.org/forum/uploads/profile/photo-thumb-2784.jpg)
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