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Originally Posted by gasguzzlingZ71
Just looking into changing the exhaust in my '97 Z71. It runs dual pipes back to the muffler. Wondering if cutting out the 2 cats will cause any problems. i'm just lookin for a cheap way to increase mileage. Also, any suggestions on what kind of muffler to put on, lookin' to get a little better sound than the stock muffler.
Thanks
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Yes, removing the cats will cause problems. The biggest problem is that it will greatly increase the emissions on something that is already very high. Another problem is that it is a violation of federal law to remove one and there is a fine of $2,000 (I think, I know it's huge. I'll report any vehicle I see with one removed, I hope other people do that as well). It will also cause the SES light to stay on. At any rate, it WILL NOT increase gas mileage... perhaps a
car would be a better solution?