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Dying cat
1998 s10 zr2 4.3 4l60e 4x4, and my cat converter is dying, causing a missfire under load, and all that. know its the cat as it has the po420 (hahaha gm) code. anyway to fix this cheap?
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1967 GMC C25 305 V6
1969 K20 CST
1994 k1500, Oldredz71(ext shorty 4x4 6 in lift)
1998 S10ZR2
2001 Silverado 2500hd 8.1L
2003 Silverado 2500hd Crew cab
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