Re: Where is my CAT? With photos...
my '87 R2500 has a "y" pipe that goes to a 3" cat. Aleast that's what I found out that it should have. PO (my ol'man) cut the cat off at the "y" pipe and put on a glass pack. I'm in the same boat as you with passing smog.
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1987 GMC Crew Cab R2500 2WD. 
1954 Olds 88 2DR.
1963 Impala 2DR Sports coupe. (has been stolen) 
2006 Harley-Davidson Sportster
1994 Camaro, V6 (Wife's)
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