AEM Cold Air Intake System for 2015-2021 VA Subaru STi (21-863C) Intake Pipe Finish::Gunmetal Gray It's smooth compared to "Disc

It's smooth compared to "Disc B

With this set of Height Adjustable Lowering Springs

Genuine OEM Mitsubishi factory replacement outer tie rod end fits both LH and RH sides of all Evo X models

This is required by IHRA and NHRA at different levels of competition and if you are running slicks

AEM Cold Air Intake System for 2015-2021 VA Subaru STi (21-863C) Intake Pipe Finish::Gunmetal Gray It's smooth compared to "DiscAEM cold air intake systems are engineered to boost horsepower and torque, featuring an oversized AEM DRYFLOW synthetic washable air filter for superior airflow, filtration, and performance. Custom engineered tubes deliver better airflow than you get with a stock intake. More air means better performance. The system includes a mandrel bent aluminum intake tube, high quality hardware, and a custom heat shield to protect intake air from engine bay heat.