The screen issue...
First I know several SVTs with bumped redlines that lack the screen..
Second, I talked with Warren years ago about the screen (I have a KKM adapter and it has no provision for screen, though you can buy a gasket) At that time he specifically said it was calibrated/shaped so as NOT to require screen. Why he is say different now is beyond me??
Third..if you are using a 75mm MAF you will LOSE power with the screen because it creates an airflow lip being slightly smaller than MAF opening. I know...I showed it on dyno. Other thing is this..you can dyno tune your chip/ECU with screen in place and it will be out of wack A/F wise when you remove screen and make no other changes. So, do not add or remove screen after dyno tuning your car. It may not lose power with stock MAF but I recommend no screen with the Pro-M.
