mijo86

i just bought a set of long tube headers for my c1500 silverado and they have 4 different O2 sensor holes how do i plug the ones i dont need without welding them shut. cuz that will void the warranty. or are these needed for something else?

2000chevysilverado

iTrader: (11)

Yyou can get O2 filler plugs at oriellys

fast84

^ what he said.

2000chevysilverado

iTrader: (11)

Just take one of your rear O2s with you to get right thread pattern

01silvy

What they^^^^^ said or just stick a bolt in it.