f-max downpipe hole
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f-max downpipe hole
There are two holes on the end of the f-max downpipe for the o2 sensor. I believe I'm using the one closest to the front of the car, leaving the one closest to the cat open. Does anyone know what size bolt I need to get to fill that hole? I believe it is 3/4" fine thread, but I have been unable to locate one of that size anywhere.
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