MetroMPG -
Yeah, definitely optimistic, but I bet they are trying to justify the cost. Lowering springs have a pretty high initial cost. I think a ScanGauge is cheaper and gets you more savings.
Even though the temperatures are the same, a month between tests doesn't make sense to me. I think they should have gotten two Camaros with A/B tests both ways where one is a control Camaro. You could use the first run to "calibrate" the differences between the Camaros. The control Camaro would remain stock while the modded Camaro would be stock for one round trip and lowered for the second.
CarloSW2
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