From what I read, the smog pump injects a small amount of air into the cats to aid with cleaning the air by means of a more complete burn. I called MAC and asked them if there was any problem with running the cats without the smog pump and they said no. I'm no expert, but I am pretty sure you are not gonna clog the cats by not using the smog pump, at least not any quicker than normal.
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'93 LX, Cobra intake, K&N conical filter, tremec, 4.10, billet quadrant and firewall adjuster, paxton fuel regulator, MAC equal length shorties, BBK X-pipe with cats, Flowmaster 2-chamber cat back with stainless tips
No, I'm fat, the car is PHAT!
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