GrimmSpeed StealthBox Cold Air Intake Black 2015-2021 STI Buy Online

Description

Upgrade your 2015-2021 Subaru WRX STI with the GrimmSpeed StealthBox Cold Air Intake, designed to boost performance while maintaining a sleek engine bay appearance. This intake combines the benefits of both cold air and short ram designs, delivering improved airflow and accurate MAF sensor readings for optimal tuning results.

Featuring a custom high-flow reusable filter integrated with a velocity stack, the StealthBox heat shield isolates intake air from engine heat, ensuring cooler, denser air reaches your engine. The MAF sensor is mounted inside the heat shield with an air straightener to mimic factory airflow, preserving sensor accuracy. Installation is straightforward, taking about 30 minutes with included written and video guides.

Ideal for Subaru WRX STI enthusiasts seeking reliable performance upgrades, this intake requires tuning and is not compatible with stock or off-the-shelf maps. Enhance your Subaru’s intake system with this premium, USA-made solution. Shop now at Subimods for quality Subaru performance parts.