I have been looking at the K&N but also saw an AFE stage 1. I have a 02 silverado 5.3L. and was wondering if the AFE Magnum Force stage 1 which guarantees 25 hp would be a good idea or just stick with K&N????
The AFE is a good system. I was reading about the AFE Magnum force Stage 2 and gains are up to 50HP
Here is a link
I have a AFE Stage 1 on my Duramax and will be swithing to a stage 2 soon now that I have a programmer and exhaust.
They are both great systems. I have K&N on my truck and love it and my bro has Afe on his dodge cummins and loves it.... however, the Afe is a dry filter I believe which is good because u wont have to worry about the mass air flow sensor getting messed up by the oiled ones like K&N
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