removing cats and mpg
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Launching!
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I saw a slight increase in mpg when i removed my cats a couple of months ago. I added ASM headers and true duals at the same time though, so that's probably where the increase came from. I've seen a few people on here who have simply removed their cats, so maybe they can chime in with a more helpful answer.
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Originally Posted by Tiburon
Is it possible to loose mpg by removing the cats. This did not set any codes since they were turned off. I did feel a slight decrease mpg. Any comments or ideas appreciated.
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