Free Intake Upgrade for XJs

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Old 07-21-2013, 01:18 AM
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Year: 1990
Model: Cherokee (XJ)
Engine: Renix 4.0
Default Free Intake Upgrade for XJs

This is a cheap and (not so) easy way to get a freer flowing intake. This is the second jeep I have done it to.

Tools Needed: Flat Screwdriver
Pliers/vicegrip
Small saw (like a keyhole saw for drywall)
Towel

First, remove the top of the airbox. This is what you should see
Free Intake Upgrade for XJs-image-3653952150.jpg

As you can see this is very restricted
Free Intake Upgrade for XJs-image-1933366142.jpg

Use your saw to cut a notch out of the restrictor and pull it out with your pliers.
Free Intake Upgrade for XJs-image-3477900104.jpg

Now isn't that much better?
Free Intake Upgrade for XJs-image-1602139761.jpg

I notice more gain on my 89 with free flow exhaust than my 90 with stock exhaust, but 0-60mph is still under 10 seconds. Pretty good for a brick!
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