Torque Solution TS-SU-881-84 Cast Aluminum HD Hard Turbo Inlet 84mm FP Coupler

The Torque Solution TS-SU-881-84 is a cast aluminum HD hard turbo inlet pipe designed for Subaru EJ engines that utilize an STI or similar intake manifold. This high-performance inlet is engineered specifically for 84mm (3.3-inch) Forced Performance (FP) turbochargers, providing a significant upgrade over the restrictive factory corrugated rubber inlet hose.

Key Features:

• Cast aluminum construction for maximum durability and heat resistance
• 84mm / 3.3-inch coupler size specifically designed for FP turbo applications
• Larger internal diameter and smooth bore design for improved airflow to the turbo compressor
• Includes all necessary hardware for complete installation
• Compatible with both recirculated and speed density (vent-to-atmosphere) configurations
• Eliminates potential for collapse that can occur with silicone inlet hoses
• Precision cast aluminum construction ensures consistent performance and reliability

Installation Note: The included coupler will require trimming on both ends for proper fitment. It is recommended to trim in approximately 1/8-inch increments using a worm gear clamp as a guide with a sharp blade. Apply masking tape to the inlet pipe to prevent scratching during the trimming process.

This hard inlet pipe replaces the factory restrictive inlet hose, smoothing airflow and reducing turbulence as air enters the turbocharger. The cast aluminum design provides a permanent, durable solution that won't degrade over time like rubber components, making it ideal for both daily driven vehicles and high-performance builds.