Tell me all the ways to increase mpg
07-20-2018, 10:59 PM
#22
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hmm...I seem to see a lot of pages calling them pre-cats and a lot of pages saying there are just four cats. It's been awhile since I've been in the 10th-gen scene, but they were always called "pre-cats" when I was pretty active in the 97-03 forums. I see nothing "official" calling them pre-cats though, so I assume you're correct. Sorry for the misinformation!
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CoachJ (07-21-2018)
07-20-2018, 11:03 PM
#23
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07-20-2018, 11:29 PM
#24
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well i gutted the precats and if i replaced the regular ones with lets say hi flows, would i still get the same mpg if i wouldn't have gutted the pre cats, or is it fine to gut those
07-21-2018, 09:52 AM
#25
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07-21-2018, 09:53 AM
#26
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07-21-2018, 09:54 AM
#27
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JP, I think our trucks are 2.5, aren't they?
07-21-2018, 12:00 PM
#28
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It will probably be pretty close. This is what you need.
07-21-2018, 01:01 PM
#29
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Do you not have O2 sensors already in the exhaust pipe?
07-21-2018, 01:26 PM
#30
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