K&N rx-4990
Does anyone know if the K&N RX-4990 filter has the sensor hole in it as the RX-4750 does?
I cannot tell from the pictures of the RX-4990 if it does or not. WHere is it located on the RX-4750?
Thanks!
I cannot tell from the pictures of the RX-4990 if it does or not. WHere is it located on the RX-4750?
Thanks!
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Certified GM nut
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From: Home Sweet Home in New York

The IAT hole on the 4750 is on the backside of the filter, right next to where you insert the pipe. As an FYI, it was way too small for my 95 IAT and I wound up drilling it out a bit.
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