Will I Pass Smog With High-Flow Cat.?
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From: So Cal
Will I Pass Smog With High-Flow Cat.?
Today an exhaust shop guy told me that I would not pass smog if he were to install a new, high-flow cat. like a Magnaflow or Catco. (By the way, I live in California.) I then called some other exhaust shops and they all said that I would have no problem passing smog with any cat. as long as it is specifically for your vehicle. Does the guy who said I wouldn't pass just not know what he's talking about? Help! Thanks. -89IRO
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From: Someone owes me 10,000 posts
Car: 99 Formula
Engine: LS1
Transmission: T56
Axle/Gears: 342
Well, I don't see how you wouldn't all thing being equal, say you could pass before the hi flo one. Now adding a hi flo one shouldn't cause you to fail, or they wouldn't sell them, or at least put not 50 state legal. You should be fine.
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Most likely, the guy at the 1st shop doesn't carry those brands, so he wants to sell you one of his $300 "high-backpressure/high-torque" converters...
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Joined: Aug 2002
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From: So Cal
Yeah, that or, he knows they aren't illegal so he thought he would try and scare me so I would come running to him. Will a new, high-flow cat make my exhaust louder than say the 13 yr. old origional one? -89IRO
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aftermarket, california, cat, catalytic, cats, converter, flow, high, highflow, installing, ls1, magnaflow, muffler, pass, passing, performance, slp, smog
