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the clever guy
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782 Posts
You don't "need to have to" but it would be very beneficial. Try typing the keyword ' intercooler ' using the search feature for the many options available. One choice is the NPR Isuzu intercooler. Cheap, effective, and available in two sizes.
 

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the clever guy
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782 Posts
The small NPR doesnt really flow better than the stock, it just cools a lot better and is less prone to heat soak.
Prove it--the part about it not flowing better than the stock one. No flames intended but a leaf blower doesn't cut it for me. The tubes appear to be thicker than the oem ones but the main thing to look at is how air flows through them.

here's the stocker. look at all of the SHARP 90 degree turns the air has to make, going into and out of the core. Definitely not "flow friendly".
 

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the clever guy
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782 Posts
and here's the small npr. The two cores themselves probably can flow similar amounts of air but there are major differences in delivery. Here the endtanks "guide" the air into the core tubes resulting in a LOT less turbulence which = more airflow. This is very rudimentary presentation but I'm not a huge fan of using engineering level text when it's not needed. Sorry for the thread hijack but it's relevant info. that could help you choose your intercooler :)
 

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the clever guy
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782 Posts
Dude, am I buzzed OR is your IC (and flows) upside-down?
The stock pic is probably but the NPR is correct in it's depiction. Either way, it doesn't matter.

The NPR ones aren't "direct" drop ins but only take a little effort to make them work. The bigger one takes more work as some stuff needs to be moved around in the nose of the car.
 
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