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Originally Posted by Padawan
Most of them do. In fact, every car I've worked on that had a MAF (as opposed to a MAP) had a screen like the one here.
Not only does it serve to keep out "large chunks", but it more importantly influences airflow over the sensor.
You can read more here: http://www.gmtips.com/3rd-degree/dox/tips/maf/maf-screen.htm |
Ditto that. I've put in a couple of CAI (Cold Air Induction) kits in other cars, I haven't encountered one without the screen, domestic or import. Oh and BTW, there was always a seat of the pants difference felt with them, one verified a 13 HP increase on the dyno, these completely replaced the stock airboxes though.