AEM 15-17 Subaru WRX STi 2.5L H4 - Cold Air Intake System - Wrinkle Black 5x120 such as the Infinity ECU

such as the Infinity ECU

alignment tool and pilot bearing (if needed)

diaphragm spring

View the 24-6110C vehicle applications to determine the legal status for each vehicle

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

AEM 15-17 Subaru WRX STi 2.5L H4 - Cold Air Intake System - Wrinkle Black 5x120 such as the Infinity ECUAEM 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