Here are my observations.
Sometimes putting the filter on too far will cause surging.
1. The filter DOES touch the air dam.
2. I have only very slight surging but only when its VERY cold out and no gas pedal, as soon as i even touch the pedal, it stops, again, its very slight and may not even be due to the Halltech.
FYI, I have not removed the screen.
I do site work for Jim and will ask him to reply to this post.
JC
Sometimes putting the filter on too far will cause surging.
1. The filter DOES touch the air dam.
2. I have only very slight surging but only when its VERY cold out and no gas pedal, as soon as i even touch the pedal, it stops, again, its very slight and may not even be due to the Halltech.
FYI, I have not removed the screen.
I do site work for Jim and will ask him to reply to this post.
JC