Forced Performance Subaru STi/WRX Blue Turbo 84mm Black Housing Internal WG w/Oil Line (D/S Only)

Forced Performance is well-known for building robust turbochargers for performance applications, and this 84mm Blue turbocharger is a prime example of their work for Subaru STi and WRX models. This unit is designed to replace your stock turbocharger, offering a significant upgrade in airflow and performance potential. The black housing gives it a stealthy look under the hood, while the internal wastegate simplifies plumbing compared to external setups.

This turbo features an 84mm compressor wheel, which is larger than stock and capable of moving more air to support higher horsepower levels. The 'Blue' designation typically refers to Forced Performance's advanced compressor wheel technology, aimed at improving efficiency and spool characteristics. The internal wastegate is pre-set to help manage boost pressure effectively, and the included oil line is essential for proper lubrication and cooling of the turbo's rotating assembly. This specific model is for the driver's side (D/S) application, meaning it's designed to fit in the factory location on that side of the engine bay.

When installing a larger turbo like this, it's crucial to ensure your engine management system is properly tuned to take advantage of the increased airflow and to maintain safe operating parameters. You'll also want to confirm that other supporting modifications, such as fuel system upgrades and exhaust components, are adequate for the power levels you intend to achieve. This turbocharger is a serious upgrade for Subaru enthusiasts looking to push their vehicle's performance further.