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Old 08-09-14, 10:02
DirtyTenere DirtyTenere is offline
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Join Date: May 2014
Location: Sydney
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Exhaust sound changing on cold start

Hi there I have noticed my exhaust note changes on and off to a deeper tone on cold start up. it's not changing revs just sounds like it's getting deeper then stops. Some times it does it a few times on and off for the first minute of start up. I have a O2 controller and a fuel mod fitted is this normal?


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