The Perrin PSP-INT-355 post-MAF silicone hose replaces the factory corrugated rubber hose between the inlet tube and airbox with a smooth, durable silicone alternative. An ideal upgrade for high-mileage or older turbocharged Subarus that have developed cracks or holes in the original hose. Available in Black and Red.

Key Features

• Replaces factory corrugated rubber post-MAF hose
• Smooth silicone construction — improved airflow and durability
• Ideal for restoring high-mileage or older turbo Subarus
• Available in Black (PSP-INT-355BK) and Red (PSP-INT-355RD)

Vehicle Fitment

• 2008–2014 Subaru WRX
• 2008–2021 Subaru WRX STI
• 2005–2009 Subaru Legacy GT

Specs

• Part Number: PSP-INT-355BK (Black) / PSP-INT-355RD (Red)
• Material: Silicone
• Position: Post-MAF (between inlet tube and airbox)