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Layered blues for a quiet Nordic mood—built for long scrolls and clear product focus beside the sticky cabin window.
Wood-toned frames and chip trails keep the buy box grounded—harbor calm meeting cabin warmth without clutter.
The Perrin drop-in air filter for the Subaru WRX and STI uses a 2-stage foam filtration element to improve airflow in your stock air box
Sold as a set of four (4 flaps)
Part Number: SUSH9
For a complete kit with lines
you're going to need to get the STi oil pan and dipstick and dipstick tube to fit with this header*
ESR 18x9.5 5x100 +22 73.1 Gunmetal Machine Lip SR01 Wheel GS350_2006-2011 The Perrin drop-in air filterPart #: 89550022 SR01GM ML ESR SR01 Wheel Features: High Quality Low Pressure Casting Daily use and Track Proven OEM TPMS and Mounting Hardware Compatible Custom finishing upon request Optimum strength 1 year paint warranty 6 month warranty on rivets Lifetime structural warranty