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      03-19-2013, 09:31 PM   #50
Private First Class

Drives: 2006 Mystic Blue ZCP E46
Join Date: Oct 2009
Location: San Jose, CA

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Originally Posted by tom @ eas View Post
We don't like to give indications that updating from an old results in "gaining" performance, but "restores" lost power instead. For those with higher mileage and have not changed plugs, you could be missing out.

Dyno first to get a baseline, rather than relying on the butt dyno. This will only validate your end results.
Well put. Thanks for the suggestions Tom.