Join Date: Aug 2005
Location: Arlington Texas
You can, but there are better options
Yes, it is possible to use a Civic intake, but the placement of the filter may not be optimal in the Intrepid. Most Civic intakes are a bit too short, this places the filter in a region of hotter air, this reduces performance a bit, as much as 5 hp possibly, thus negating the benefits of the intake. Some people on this site have used a Civic intake kit on their 2.7, but I don't know how well they work.
I knew a few ricers in high school who put "short rams" instead of true cold air intakes on their cars and performance actually went DOWN due to the increase in temperature of the intake charge! It was really funny to see a slightly modded civic lose to a stock one!
Here's why: Hotter air is less dense than cold air, thus it has less oxygen than cold air for a given volume.
Get the K&N kit or the Joekd intake kit, these kits have the filter near where your old airbox used to be so it can suck in cooler air.