Version 2 Cast Aluminum Turbo Inlet

The GrimmSpeed Version 2 Cast Aluminum Turbo Inlet offers a robust solution to the common cracking issues found in OEM plastic turbo inlets on 2015-2021 Subaru WRX models. Constructed from durable A380 cast aluminum and precisely CNC machined for perfect sealing surfaces, this inlet eliminates the risk of cracks forming around the BPV and turbo flange, which can compromise metered air and engine performance. This Version 2 features interchangeable threaded fittings to accommodate PCV return lines on both earlier (2015-2016) and later (2017-2021) models, simplifying fitment. The CAD-optimized, seamless flow design actively removes air pockets present in the stock inlet, facilitating better airflow to the turbocharger. While not a standalone performance upgrade, it is an essential component for optimizing the intake tract and enabling the engine to breathe more freely. No tuning is required for installation, even when paired with GrimmSpeed DRY-CON Panel Air Filters and Post MAF Hoses. An installation note specifies that this inlet is designed to interface perfectly with the GrimmSpeed Electronic Boost Control Solenoid for the 2015-21 WRX; use with other OEM or aftermarket BCS may require modifications like washers or longer bolts. Fitment includes 2015-2021 Subaru WRX (All USDM models/trims and most international trims) and 2014-2018 Subaru Forester XT (All USDM models/trims and most international trims). It is explicitly NOT compatible with Canadian-spec OEM aluminum inlets that feature coolant lines running through them.