Torque Solution HD Cast Aluminum 2.4in Hard Turbo Inlet WRX / STI 2002-2021 | TS-SU-881-O

Product Fitment: 

2002-2007 Subaru WRX

2004-2021 Subaru STI

Unlock improved airflow and durability with the Torque Solution Cast Aluminum HD Hard Turbo Inlet Pipe, engineered for Subaru EJ engines equipped with an STI or similar intake manifold. Designed to replace the restrictive OEM rubber hose, this upgraded inlet pipe offers a smooth, larger-diameter path to your turbo for optimized performance across both daily-driven and high-powered builds.

Available in multiple sizes—2.4" (OEM), 3" (PTE, Blouch, Garrett), and 84mm/3.3" (FP)—this hard inlet is compatible with both recirculated and speed density setups. Precision cast from high-quality aluminum and finished in a sleek black anodized coating, it’s built to last and designed to perform.

Features:

• CNC-cast aluminum construction with black anodized finish

• Significantly improves airflow compared to OEM corrugated rubber hose

• Supports OEM-style recirculation or speed density configurations

• Available in 2.4", 3", and 84mm (3.3") turbo inlet sizes

• Includes all necessary hardware for a complete installation

• 4-ply silicone couplers for reliable sealing and durability

• Silicone-safe stainless steel worm gear clamps included

• Direct bolt-on fitment for EJ engines with STI-style intake manifold

• Limited Lifetime Warranty for peace of mind

What’s Included:

• (1) Cast Aluminum HD Turbo Inlet

• (1) Silicone Coupler (OEM, 3", or 84mm)

• (1) 1/4" Stainless NPT Plug

• (1) Billet Aluminum 1/4" NPT to 3/8" Straight Barb Fitting

• (1) Billet Aluminum 1/4" NPT to 3/8" 90° Barb Fitting

• (1) Billet Aluminum 3/8" NPT to 5/8" 90° Barb Fitting

• (1) Billet Aluminum Recirculation Adapter

• (1) Billet Aluminum Speed Density Cap

• (1) 80–100mm Wide Silicone-Safe Worm Gear Clamp

• (1) 70–90mm Wide Silicone-Safe Worm Gear Clamp

• (2) 70–90mm Standard Silicone-Safe Worm Gear Clamps

• (1) 25–40mm Standard Silicone-Safe Worm Gear Clamp

Installation Notes:

• Coupler trimming required for proper fitment; trim in 1/8" increments using a fresh blade

• Use masking tape on the inlet during installation to prevent surface scratches

• PTFE tape is recommended when installing all fittings

Upgrade your Subaru EJ engine’s intake system with a robust, performance-ready solution that eliminates failure-prone rubber and enhances turbo efficiency.