The Torque Solution Big Bore 76mm Throttle Body Adapter allows Subaru EJ engine owners with a standard bore intake manifold to upgrade to a Toyota 76mm big bore throttle body, increasing airflow by 25% over OEM. CNC-machined from 6061 billet aluminum and anodized for corrosion resistance, this adapter includes O-ring gaskets for a leak-free seal and all necessary hardware for installation.

• CNC 6061 Billet Aluminum Construction
• Anodized for Corrosion Resistance
• O-Ring Gaskets for Leak-Free Seal
• Limited Lifetime Warranty

Includes:

• (1) Billet Spacer
• (2) Large O-Rings
• (4) Small O-Rings (for M6x20 bolts on spacer)
• (4) M6-1.0 x 20 Low Profile Zinc Socket Cap Bolts (bolts spacer to IM)
• (4) M6-1.0 x 50 Stainless Steel Socket Cap Bolts (bolts TB to spacer)
• (4) M6 Zinc Flat Washers (for TB to spacer)
• (7) Rivets (to secure OEM TB motor to big bore TB)
• (1) M4 Nyloc Nut (used as rivet spacer tool for motor cover near harness plug)

Confirmed Fitment:
Intake Manifolds:

• Process West Intake Manifolds
• Corsa Veloce Intake Manifolds

 

Big Bore TB Part Numbers:

• Toyota 22030-0S010 / 220300S010
• Toyota 22030-0F010 / 220300F010
  (May work with other Toyota TBs, but above are confirmed)

Vehicle Fitment:

• Subaru STI 2004–2005 (requires 2006+ riveted throttle body)
• Subaru STI 2006–2021
• Subaru WRX 2006–2007
• Subaru WRX 2008–2014 (requires confirmed-fit intake manifold)
• Subaru Forester XT 2004–2008

Important Installation Notes:

• Intended for high-horsepower builds; consult your tuner before installation.
• Requires swapping the motor from a Subaru DBW throttle body (2006–21 STI, 2006–07 WRX, 2004–08 Forester XT).
• FMIC piping required; piping modifications may be necessary.
• A new transition coupler and clamp are needed to fit the 3.5" big bore TB to your piping.
• An aftermarket MAP sensor is required and must be relocated to the intake manifold or vacuum block.
• Tuning adjustments are necessary to accommodate the big bore TB and aftermarket MAP sensor.