Perrin Cold Air Intake Red WRX (2008-2014) STI (2008-2018) Scion and may still cause a

and may still cause a CEL

We suggest that you use some form of engine management system such as a Cobb AccessPort to eliminate the CEL

is not loud compared to an atmosphere BOV

otherwise known as "Drive-By-Wire"

A potent max gain of 21 hp and 24 ft-lbs of torque at the crank without software when mated to the AWE Tuning Touring and Track Edition Exhaust systems

Perrin Cold Air Intake Red WRX (2008-2014) STI (2008-2018) Scion and may still cause aIncrease horsepower and style under the hood of your 2008+ WRX STI with this Perrin V2 Cold Air Intake. Perrin's engineering research team has discovered that proper MAF sensor alignment and plumbing size are crucial to maintain proper air fuel ratios and prevent nasty check engine lights that can plague the competition. With this intake system alone you will see consistent gains in horsepower and throttle response. Power Add 15 30 WHP to your car.