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EVO High Flow Cold Air Intake System

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Does anyone have any experience with EVO High Flow (Cold) Air Intake System (the one which replaces stock air box with cone filter)? After installing, were you happy with results? Any regrets? This is just a thought right now to improve performance and sound.

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We have some owners who had them then removed them due to air flow sensor issues. We have another local owner that put one in last year and so far no problems.

When it first came out years ago Dan, another local owner, put one in. Dynoed his car before and after and there was a modest hp gain.

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I believe your money would be better spent making your own intake tube. The plastic pieces end up being nothing more then a few pieces of plastic. The only hard part is the MAF bung, but if you can bare with cutting your own air box apart. you can use your bung, and put a cone filter on it's cut end. The other sophisticated part is the plastic bent shield which your cone filter would sit in. It looks like someone bent a small sheet of plastic into an L shape.

Food for thought -

The problem with some of the intakes is they use 3" plus tubes with rubber joining pieces. This less then adequate design creates turbulence off of the little lips each joining piece make, thereby negating the improved intake.

This is why a good machinist will port and polish intakes, to stop turbulence and create a smooth intake.

The better design is to have one piece from the cone filter to the throttle body [TB].

The smoother the better; a piece of mandrel bent aluminum will be the best [economical], if you really want to get touchy, then insulate the tube to keep the charge as cold as possible. The colder the charge = denser burn and efficiency, power will be your reward.


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