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Old 11-08-2008, 12:39 AM
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Hi guys, will adding a Magnaflow catback change my air fuel ratio. I have 98 z28.
Old 11-08-2008, 04:30 AM
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not at all.
Old 11-08-2008, 04:42 AM
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your ECU can adjust to stuff like that. at the most it may run just a tab bit richer. make sure to disconnect your negative to refresh the ecu
Old 11-08-2008, 05:36 AM
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How long should I disconnect the battery for?
Old 11-08-2008, 09:27 AM
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Originally Posted by noriceinside
not at all.
+1 wont change it at all

Originally Posted by Ricky74
How long should I disconnect the battery for?
i added longtubes, o/r Y and catback and never had any problems. drove it like that for a few months. youll be fine with a catback.
Old 11-08-2008, 10:24 AM
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Magnaflow is a good choice..
Old 11-08-2008, 04:17 PM
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Would an SPL airbox lid change the air fuel ratio?
Old 11-08-2008, 08:37 PM
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Originally Posted by ae13291
make sure to disconnect your negative to refresh the ecu
Why negative, what happens if you disconnect positive?
Old 11-08-2008, 08:50 PM
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Originally Posted by Ricky74
Would an SPL airbox lid change the air fuel ratio?
It shouldn't. The computer can adjust for a small change like that.
Old 11-08-2008, 11:22 PM
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Originally Posted by 99'CajunFirehawk157
Why negative, what happens if you disconnect positive?
same thing as negative. it doesn't matter.


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