Just got home from installing the JB4 and I am really impressed with how much the car responded - when the temperatures around here dip back into the double digits here I'll start messing with map 6.
Where is everyone stuffing the actual JB4 box? I put mine between the battery and ECU but it is a little too snug imo. Between the airbox and battery felt way too loose for comfort as well.
I bought something similar to this to wrap the JB4 in and it keeps it nice and snug between battery and airbox.
Black Heat Resistant Flat Mat For G...p/B00F594LQ0/ref=cm_sw_r_cp_api_2SELzb7V7J8RX