Higher flow equals more power, and that’s exactly what the Mishimoto 2015 WRX TGV delete kit does. TGVs, or tumble generator valves, are butterfly valves that kick-in during cold startup to improve emissions, but once the vehicle hits optimal operating temperature, they open wide. Even when the valves are fully open, the rod portion of the valve creates an obstruction across the center of the intake manifold runner and impedes airflow. The Mishimoto TGV Delete Set eliminates the butterfly valves and solenoids to smooth out the flow from the intake manifold to the cylinder head intake ports.
The Mishimoto 2015+ WRX TGV delete kit comes in either anodized aluminum or Delrin. Delrin, a highly engineered thermoplastic, has very low thermal conduction properties, resulting in less heat transfer and creating a cooler air-charge. These WRX TGV deletes cannot be used with the stock tune, but can offer significant power increases when used with an appropriate tune.
This product will not work with the stock ECU tune, a custom ECU tune is required to ensure proper operation of your vehicle.
This product will only fit 2015+ WRX models with the FA20DIT engine, it will not fit STI models.
Recommended torque spec is between 6 and 7 ft-lbs, refer to Mishimoto’s installation guide for the intake manifold torque sequence.
Installation time will vary on the type of intercooler and charge pipe your vehicle is equipped with. Vehicles with a front mount intercooler kit will require less time for installation.
Mishimoto currently does not offer any ECUTek tuning solutions for this product.