Torque Solution HD Turbo Inlet Carbon Fiber 3.0 Inch 2002-2007 WRX / 2004-2021 STI

The Torque Solution Carbon Fiber HD Hard Turbo Inlet Pipe is engineered for Subaru EJ engines equipped with an STI or similar intake manifold. Designed to replace the restrictive OEM corrugated rubber inlet, this high-flow carbon fiber inlet provides a larger, smoother pathway for air entering the turbo—improving response, airflow, and reliability. Built for versatility, it supports both standard recirculated setups and speed density builds, with all necessary fittings and hardware included for a clean, direct-fit installation.

Features:

• Carbon fiber construction w/ Torque Solution logo
• Significantly increases and smooths airflow to turbo
• Eliminates failure-prone corrugated OEM rubber hose
• 4-ply silicone couplers with stainless, silicone-safe clamps
• Direct-fit design with multiple setup options (recirculated or speed density)
• Includes all required hardware and billet aluminum fittings
• Limited Lifetime Warranty

Kit Includes:

• Carbon Fiber HD Turbo Inlet (1)
• Silicone turbo coupler 
• 1/4" stainless NPT plug (1)
• Billet aluminum fittings:
  • 1/4" NPT to 3/8" straight barb (1)
  • 1/4" NPT to 3/8" 90° barb (1)
  • 3/8" NPT to 5/8" 90° barb (1)
  • Inlet recirculation adapter (1)
  • Inlet speed density cap (1)
• Silicone-safe worm gear clamps:
  • 80–100mm wide (1)
  • 70–90mm wide (1)
  • 70–90mm standard (2)
  • 25–40mm standard (1)

Install Notes:

1. Turbo coupler will need trimming on both ends. Trim in ~1/8" increments using a clamp as a guide and a sharp blade.
2. Use masking tape to protect the inlet from scratches during trimming.
3. Apply PTFE tape to all fittings for a proper seal.