![Perrin [19-21 WRX STI] Panel Filter | PSP-INT-114 16-21 civic 1.5t Test-fit before fully securing to](https://cdn.shopify.com/s/files/1/0023/6109/8353/files/PSP-INT-100.03x800.jpg?v=1783650422)
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Test-fit before fully securing to confirm clearance and connector compatibility with your specific year
Improves handling by reducing sway bar movement and flex
Check your fuel pump pressure rating and injector specs first — if you're running over 60 PSI
Remove the old headlights
hit them with primer
Perrin [19-21 WRX STI] Panel Filter | PSP-INT-114 16-21 civic 1.5t Test-fit before fully securing toPerrin 18 20 Subaru WRX STI Panel Filter The PERRIN High Flow Washable Replacement Air Filter is the last filter you will ever need to buy. It is washable and will increase horsepower with very little work to install, making it one of the easiest upgrades for your car!
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