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New 2.5L Ecotec Is Significantly Quieter Than Outgoing 2.4 | GM Authority
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Gm introduces extra-small block ecotec engine family .
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New 2.5L Ecotec Is Significantly Quieter Than Outgoing 2.4 | GM Authority
GM Introduces Extra-Small Block EcoTec Engine Family - Motor Trend WOT
GM's New Ecotec Engine Family Gasoline Direct Injection | WardsAuto