This page contains Scion FRS air filters, cold air intakes and short ram air intakes by industry leading manufacturers including AEM, K&N and Injen. The Scion FRS comes with a stock air box designed to minimize intake noise which also restricts air flow to the engine. An aftermarket air intake is designed to free up air flow as well as keep the air cooler for racing or high performance use.
Scion FRS Air Intake Systems
Above you can see a photo of a stock air box of a Scion FRS. This part is designed to bring cool air in from the front bumper, filter it and then send it into the internal combustion engine. The stock air box is quite restrictive when compared to an aftermarket design, the purpose being to keep the engine as quite as possible and safe from the elements such as hard rain or debris while still allowing air into the engine. Scion FRS cold air and short ram intakes are the most common and basic performance modification because of ease of installation, improved performance and engine sound as well as improved fuel efficiency. A Scion FRS air intake system provides the highest horsepower per dollar of any modification and is usually the first one done on a vehicle.
In the photo above, you can see a Scion FR-S engine bay with a cold air intake that has replaced the stock air box. There are two main types of after market intake systems, cold air intakes and short ram intakes. Both allow more air into the engine for better performance, the difference is a short ram air intake is housed within the engine bay and a cold air intake (typically) routes a pipe down into the bumper in order to get the coolest air possible. On the FR-S, a new style of cold air intake has been created that utilizes a new air box to separate the filter from the engine bay with an opening to air coming in from the front of the vehicle, thus acting as a cold air intake by keeping the filter from warmer air.