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Re: eBay Long Tube header install... pics inside
That's because you removed the cat converters. The codes will not hinder performance in any way, it's just a diagnostic to tell the computer if the cats are working or not. You can leave it like that as long as you don't mind the light staring you in the face.......but you'll never know if a more serious code was tripped.
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'85 Silverado swb: 383 stroker, 10.5:1, vortec heads, 232/238 roller cam, RPM air gap, performer 750 carb, stainless longtubes, 3" duals/super 44's, T56/4.11 383ci build / exterior refresh thread
'98 Camaro z28: 370ci twin turbo 370ci build
'01 Tahoe LT 4x4: 5.3, longtubes/ory, magnaflow duals, custom tune....wife's DD
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