AEM 15-17 Subaru WRX STi 2.5L H4 - Cold Air Intake System - Wrinkle Black 5x120 The intake tubing is constructed

The intake tubing is constructed from mandrel-bent aluminum featuring a durable black powder coated finish

or 3rd party EMS or logger that accepts AEMnet

This AEM air intake system replaces both the left and right factory air box

diaphragm spring

AEM 15-17 Subaru WRX STi 2.5L H4 - Cold Air Intake System - Wrinkle Black 5x120 The intake tubing is constructedAEM Cold Air Intake Systems are designed to produce horsepower and torque gains. They replace the restrictive factory airbox and air filter to give you better performance and better engine sound. AEM cold air intakes relocate the air filter outside the engine compartment so cooler air can be fed into your engine. Cooler air carries more oxygen, which translates into a more intense explosion in the combustion chamber for more horsepower and torque. AEM