Perrin Throttle Body Hose Red 2002-2007 WRX / 2004-2021 STI / 2004-2008 Forester

Upgrade the reliability and performance of your intake system with the PERRIN Throttle Body Coupler Kit. Designed to replace the flimsy, leak-prone OEM rubber coupler, this high-quality silicone coupler ensures a secure and consistent seal between the throttle body and intercooler piping.

Constructed from multi-layer reinforced silicone, the PERRIN coupler resists heat, pressure, and oil exposure—delivering long-lasting durability and a cleaner engine bay appearance. Whether you're running stock boost or a high-performance setup, this coupler provides a precise fit and improved airflow for more responsive throttle performance.

Features:

• Direct replacement for OEM throttle body coupler

• 5-ply reinforced silicone construction

• Resistant to heat, oil, and pressure

Included:

• (1) PERRIN Intercooler Coupler
• (2) Clamps

Installation Instructions