20G-XT Turbocharger

The Blouch 20G-XT Turbocharger is engineered for Subaru WRX and STI models from 2002-2021, offering a significant performance upgrade over stock units. Developed by Blouch Performance Turbo, this turbocharger utilizes a proprietary journal bearing turbine wheel and shaft assembly, paired with billet "XT" compressor aero. The compressor wheels are crafted from a stronger, lighter closed-die forged aluminum alloy and are precision-machined using 5-axis CNC technology to optimize airflow and efficiency. This turbocharger is designed to deliver improved performance, producing greater peak torque and horsepower compared to older 20G models when run at the same boost pressure, providing true bolt-on performance gains. BPT offers three Subaru turbine housing options (7cm², 8cm², and 10cm²) and a 3" bellmouth inlet option to tailor the 20G-XT to specific applications. The package is a complete bolt-on solution for your Subaru, including a steel oil drain tube, coolant lines, turbo mounting gaskets, and an adjustable upgrade actuator as standard. With a horsepower rating of 470HP, the 20G-XT is suitable for enthusiasts seeking enhanced power. One user reported making 484hp and 450tq at 20psi boost with a 7cm² housing, noting a slightly slower spool than the stock VF48 but with significant potential for more power on built heads. Another user aiming for 420-450whp opted for the 10cm² housing, appreciating the balance between quicker spool and the ability to hold power.