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Originally Posted by Johnny Danger
If you delete all of the cats, the vehicle will no longer be OBDII compliant, and it will subsequently fail emissions (not to mention CEL's). In addition, from a performance standpoint, it's been my experience (with the 3.2 engine) that going catless will result in a measurable loss of low end and mid range torque.
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Running RoW spec DME will not read from the 2nd o2 sensors,so you can remove the 2nd set of cats without a CEL light.
You should still pass smog....I was going to do this to my 01' S cause the 2ndary air injection used on cold starts went out and I wasn't gonna pay $1k to replace it when it really does nothing.
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-99' Zenith Blue 5-spd...didn't agree with a center divider on the freeway
-01' S Orient Red Metallic 6-spd...money pit...sold to buy a house
