I don't know which intake to get I really like both if these intakes but I also want the intake with more power and less weight.
PERRIN COLD AIR INTAKE
or
BLITZ ADVANCE INTAKE

 

Perrin makes good stuff for the FR-S. But either way, like any N/A vehicle, it's an intake. It will have the same effect no matter what brand or type or style you use. You could make one with Autozone tubing and a filter and have the same gains. I'd go with the Perrin because it's reputable amoung FR-S's.

 

Drop in K & N filter has been proven to have the greatest gains plus it is inexpensive. Just my 2.0 cents. .why spend what you don't have to.

 

That cannot be right. A tube and a filter is going to have way more air flow than an airbox...