02-26-2010, 12:31 PM
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#6 (permalink)
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Batman Junior
Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
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I don't know anyone who's quantified the efficiency gain of the XFi cam - it's too hard to do in any kind of controlled fashion outside of using a dyno).
If I had to guess though, it might be worth a couple of percent improvement.
Going to the 3.52 (tallest available) final drive was worth about a 5% gain for me.
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