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Discussion Starter #1
thinking about these cobb cams.
will i need to put in higher octane? or will i need to to see more performance and use 87 for long trips
 

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99 2.5 RS-T
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838 Posts
The only det problems I had N/A were due to the MAF leaning out at high RPM... regardless of octane (only run 89 or 93, OK 91 in a pinch). I'm running street cams, spicey and race are another story.
 
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