Be careful on what kind of Grill you get for you scoop. Went I bought my WRX it had a grill already in the scoop. Thought that it would be letting air through still, but when i took it out it was blocking heaps of air! Used an air compressor and could hardly feel any air actually getting past the grill. Once it was out of the scoop the car felt smoother and felt like it wanted to get up and go more. Plus the scoop looks way better without a grill, lol,

Just my 2 cents :P

__________________
WRX MY05
215HP - 16 PSI
Ultrex TBE
Cobb Air Intake
STI Intercooler