Here is pic of the frequency response of the stock pickups in the Charvel Avenger.
This was done before I took the Avenger apart.
I sampled them in the three switch positions.
I used the Signal Scope app for i-phone for the test.
The guitar was plugged straight into a Roland Cube 40XL amplifier set on the clean channel, with all the effects turned off, the guitar volume at full, and the amp volume at 5. I played an E5 Chord for the test.
The microphone was set 1 meter from the amp directly in front of the speaker.
This pic is with the switch in the middle position, being a combo of the neck and bridge pickups.

I did this test to see if there is any measurable change between the stock pickups and the replacement ones. I know they will sound different, but I wanted to see if the difference could be measured in real world conditions.