agrreed Rob, dual 3's too big. that would sound like a fart piped civic and porb hurt the motor. 2 1/4 was what I was thinking. Running the boost I am looking @ will be able to create that back pressure.
m20 Dual exhaust?
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just wondering, but isnt it illegal to run your car on the street without a cat? Will it pass emmisions w/o a cat?98 M3/4/5

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I've wondered that too. I've heard that it depends on who is smogging your car, and if they care. I also heard that you can get a ticket if you are caught without a cat here in California. Can anyone verify this?Originally posted by randomtask37but even if it passes and they see that u have no cat, do they care?Comment
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I had my car inspected last week (i'm in NC). At this particular shop, which was an honest, non-good ole boy place, I would not have passed without a cat in place. They put my car on a lift and inspected the exhaust system, then did the sniffer test. A cleanly tuned car with a hollowed out cat would have passed.
Of course, there's plenty of ways around that, I can buy inspection stickers for $40 if I wanted to....or take a case of beer to certain shop.
But for the record, NC does care.. And please dont spring the environmental bullshit on me. The dirtiest running car with a test pipe doesnt hold a candle to the impact you're average diesel bus or truck has.........BEERTECH

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while hugging it think about what you just said. You back? Ok, now chill with that green house shit. It's an il 6 w/o a cat not a fuckin diesel big rig.
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