Process West Cold Air Intake w/K&N Filter for Subaru WRX/STI 97-98 V3/V4 Mazda-3MPS-2006 By precisely controlling this crucial

By precisely controlling this crucial transition

Audi S5 F5 (Suits models with 48

✓ Integrated dipstick for easy fluid level monitoring

S REAR — F — INSERT

Process West Cold Air Intake w/K&N Filter for Subaru WRX/STI 97-98 V3/V4 Mazda-3MPS-2006 By precisely controlling this crucialThe Process West Cold Air Intake is a direct replacement for the factory air intake on the 1997 98 WRX and STI, engineered to reduce intake restriction and improve airflow into the EJ engine. Improved intake sound. Replacing the factory air box with the Process West Cold Air Intake gives a noticeable improvement in intake sound. The less restrictive airflow path produces a more pronounced induction note under acceleration, with no extra modification.