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Old Jun 13, 2007 | 02:29 PM
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Default no cats and cut out
has any one ever had any issues by having no cats and adding a cut out?? i have a 98 z28 and its running a bit funny I've re-placed the fuel pump twice on it dnt knw if the back pressure has anythng to do wit it. my oil pressure runs quite low whn gets hot outside. any suggstions???
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Old Jun 13, 2007 | 02:34 PM
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Never had any issues. What weight oil are you using? The exhaust has nothing to do with the fuel pump and oil pressure. How many miles on the car?
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Old Jun 13, 2007 | 04:34 PM
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might have a o2 sensor issue
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Old Jun 13, 2007 | 04:55 PM
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yea I'm having no problems at all with gutted cats and open cutout...
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Old Jun 13, 2007 | 08:13 PM
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no problems here, I've been running no cats and a cut out for 3 years now. What oil are you running?
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Old Jun 15, 2007 | 05:01 PM
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i was running mobil 1 10w-20 but now i am running Mobil 1 10W-30. I am about to hit 140,000 miles.
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Old Jun 15, 2007 | 05:28 PM
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M1 tends to run on the thin side. Might want consider M1 0w-40.
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Old Jun 20, 2007 | 05:20 PM
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Default oil
yah im gonna try that my nxt oil change... thnx for the info so u say 0w-40 mobil 1????
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