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The Perrin cold‑air intake for 2018–2021 Subaru WRX STI is a direct‑fit upgrade that replaces restrictive factory ducting to improve airflow for the turbocharged STI. Offered in a red finish to add visual contrast under the hood, the kit is intended for owners seeking a vehicle‑specific intake that combines improved breathing potential with straightforward installation on new‑body WRX STI models.
PERRIN 18-21 Subaru STI Cold Air Intake - Red
