Perrin Cold Air Intake 2013-2016 Subaru BRZ / 2013-2016 Scion FR-SPerrin FR S BRZ intake system places the air filter behind the front bumper, away from the hot exhaust manifold and radiator to constantly draw cool fresh air. Many competitors leave their air filters under the hood, ingesting warmer air which causes a loss in horsepower. CARB Approved California and several other states have adopted and emission standard for the regulation of road vehicles created by the California Air Resource Barod (CARB). This