IAG Custom AOS

Built for your Subaru, the IAG Custom Air Oil Separator (AOS) collection offers premium aftermarket parts designed to enhance engine performance and reliability. These components help reduce oil blow-by and maintain cleaner intake air, improving overall engine response and longevity.

In this collection, you’ll find a range of IAG Custom AOS products engineered for optimal fit and function. Whether you’re looking to upgrade your stock setup or improve your vehicle’s durability, these parts deliver noticeable benefits in power delivery and engine cleanliness.

• Precision-engineered AOS units
• Durable construction for long-lasting performance
• Designed to reduce oil contamination in intake
• Compatible with multiple Subaru models
• Easy installation for enthusiast-friendly upgrades

Shop IAG Custom AOS upgrades for your Subaru at Subimods.