Project 5: Air Filter Cleaning
Applicable Years: C5 or any year using a non-disposable filter
Skill level: 1 Wrench
Tools required: compressed air/blower nozzle, stiff brush, screwdriver
Time required: 1 hour
Parts source: SLP Performance Parts
I have an SLP Blackwing Cold Air Induction system on my C5, and after many miles and several months, it was time to clean the filter, so I got a cleaning/servicing kit from SLP to do the job. It takes less than an hour and you don't need any tools other than a brush, some air pressure, and a screwdriver.

The filter "revitalizer" kit...

The filter "revitalizer" kit consists of a bottle of air filter cleaner and an aerosol can of oil.

After removing the filter...

After removing the filter from the C5 by loosening the hose clamp with a screwdriver and unplugging the MAF pigtail connector, use a stiff-bristle brush to brush off any loose dirt (or dog hair, as in this case).

Use a blower nozzle on your...

Use a blower nozzle on your compressor hose or a can of aerosol dust remover to blow off any remaining dust between the filter folds that the brush didn't get.

Thoroughly saturate the filter...

Thoroughly saturate the filter with the cleaning fluid from the pump-spray bottle and let it air dry completely.

When the filter is totally...

When the filter is totally dry, spray on a good, wet coat of the filter oil and be sure to get it on the insides of the folds for maximal filtering efficiency. Replace the filter in the C5, reconnect the MAF pigtail, slip the air hose on, and tighten the clamp. That's all there is to it.