I tried to remove the screen in my tb and my engine was running realy bad why?And another thing i would like to see a picture of a modified air box.Thanks!!

Short, read the Techinfo article on airbox mods. Many people have had the same experience as you, and it'* caused by turbulent airflow. Your MAF can't get an accurate reading. The best way to run without a screen is a custom tube intake and cone filter.

Will'* right (Did I say that? - OMG what'* this world coming too?) Anyways, I removed mine too, later I had to build a custom CAI using my stock air box to composate for it (MAF Screen) not being there. I can tell you one thing though, it sounds GREAT! A nice, deep & throutier sound when you punch it or when at idle!

I just went on and installed a ZZP TB. There is a performance difference.