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Originally Posted by jimmykce1
The 2006 Lexus IS 350 is going to have the same engine thats in the Avalon now, but with more tunning to get it to 305HP. So maybe you there will be some preformance parts that could be used on the Avalon and IS 350. However, the IS35o is RWD.
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They may share the same engine code, 2GR-FE, but they are completely different animals. The cylinder heads (incl. cams, valves), manifolds, pistons, and injectors are totally different. The IS350 gets the 2GR-FE with direct injection, so it becomes the 2GR-FSE. So, the IS350's 2GR-FSE not only has 6 injectors that deliver fuel directly into the combustion chamber, it also has more injectors in the intake manifold to further optimize the air/fuel ratio.