I was looking into getting an 2.4 Intake manifold for my 2.2 eco and I have have read on here and am now confused because people said you need to get your car tuned if you are doing this bolt on or you will blow rings... Ultimately because it runs lean.. Now I also see other people saying its a direct bolt on with no need for tuning... Can someone address this question who has knowledge on this subject for me plz. I know with this mod it shift your power-band and thats what im looking for.

The car has no way of seeing the extra air and shifted power-band that the LE5 manifold provides. Also our stock injectors are practically maxed on a stock engine, so upgrading to larger ones is a good idea. Which requires the car to be retuned.

Will the car run and drive without retuning it? Yes. Will you get the most out of the mod? No.