2.2L GM Ecotec Engine Mate - Ecocat V. Part V: How Keisler Engineering Mates the Ecotec to the Tremec. HOT ROD Staff Writer Apr 18, 2005. See All 24 Photos.

Both the base 2.2L Ecotec engine and the 2.4L engine upgrade achieve 30 mpg on the highway regardless of transmission. The 2.4L engine upgrade provides 26 more horsepower for $650. Popular on J.D.

The 2.4L engine, which was also available in a 2.2L form, was the precursor to the direct-injected 2.4 liter (RPO code) LEA unit that itself is about to be replaced by the 2.5 liter (RPO code LCV).