Cobb 15-21 Subaru WRX / 14-18 Forester XT Cast Turbo Inlet

Upgrade your turbo system’s reliability and airflow with the COBB Cast Turbo Inlet for the 2015–2021 Subaru WRX and 2014–2018 Forester XT. Constructed from durable cast aluminum, this inlet replaces the fragile OEM plastic piece—eliminating a known failure point in the intake system while delivering smoother, higher-volume airflow directly to the turbocharger.

The COBB inlet increases the inner diameter to 70mm (a 5mm gain over stock) and expands the outlet to match the 50mm compressor inlet, offering measurable airflow improvements. A captive O-ring groove ensures a perfect seal against the turbo's machined compressor housing, while threaded ports accommodate factory-sized PCV and EVAP fittings (included).

Also included is a reinforced silicone BPV coupler, replacing the brittle OEM connection that often causes hidden boost leaks. For those looking to run sensors, flat mounting surfaces on both sides of the inlet allow easy addition of auxiliary temperature or pressure sensors.

Whether you're replacing a cracked stock part or upgrading for more boost-ready durability and performance, this inlet offers a seamless fit, improved flow, and long-term reliability—fully compatible with COBB OTS Maps and tuning packages.