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AEM Drop-In Filter Focus ST / RS K&N Air Filter Focus ST/RS Agency Power Intake Manifold Spacer Focus RS
Drop-In Better than the OEM filter Better torque curve
Boomba Intake Manifold Spacer Focus ST / RS Mishimoto Cold Side Intercooler Piping Focus RS cp-e HotCharge Intercooler Piping Focus RS
Add power and color under the hood Holds Boost Better Holds boost better
K&N Typhoon Intake Focus RS Mishimoto Hot Side Intercooler Ppiping Kit Focus RS cp-e Exhale Tial BOV Kit Focus RS
Lets the engine suck more air Holds boost better Does not include Tial BOV
cp-e Exhale HKS BOV Kit Focus RS Boomba Auxiliary Fuel Rail System Kit Focus ST / RS Injen Intake Focus RS
Injen Intake Focus RS
Our Price: $307.76
Does not include HKS BOV Add a secondary fuel source and color under the hood Let your turbo breath
ETS Intake Focus RS Radium Engineering Port Injection Kit Focus ST/RS ETS Intercooler Piping Kit Focus RS
ETS Intake Focus RS
Our Price: $339.99
3 Inch Intake Provides more power and potential power Direct Bolt On
Mishimoto Air Intake Focus RS cp-e aIntake System Focus RS Full Blown Motorsports Secondary Fuel Injector Kit Focus RS
Helps Your Engine Breath let the engine breath Allows you to run more fuel