I plan on getting pmas and new tune later but right now I wanna ride out the warranty . I ordered the high flow filter from palm beach dyno and noticed people were running without the lid.
I run my phase 1 670 lit with lid off and a cervini hood witj the air duct straight to top of open air box. It runs stronger and pulls harder with lid off
the intake does a have a snorkel that runs behind the grill. some people cut open the grill to force more air in. there is even a snorkel extender available