Tomei ARMS MX7960 Single-Scroll Journal-Bearing Turbocharger Kit Compatible with WRX/STI EJ20/EJ25 Engine, CNC Billet Compressor, 400 HP Capable

Upgrade your compatible EJ-series 2.0–2.5 L engine with the ARMS MX7960 single-scroll turbocharger kit — engineered for improved airflow, quicker spool-up, and reliable boost delivery. The kit includes a CNC-machined billet compressor wheel for superior induction efficiency compared to stock or cast wheels, resulting in better throttle response and enhanced engine performance. With a journal-bearing center section, this turbocharger delivers smooth and consistent boost across the RPM range, making it suitable for both street-driven and performance-focused builds. Supplied as a complete bolt-on package, this turbo kit includes the necessary compressor and turbine housings, oil supply/return lines, gaskets, studs, and all standard installation hardware — offering a straightforward upgrade path for compatible EJ engines seeking a forced-induction performance boost.

• 400 HP Performance Potential – engineered to support significant power gains while maintaining responsive boost and drivability.
• High-Flow CNC Billet Compressor Wheel — precision-machined compressor provides better airflow, efficiency, and faster turbo spool compared to stock‑style cast wheels.
• Reliable Journal‑Bearing Design — ensures stable, smooth boost delivery across the RPM range, enhancing reliability for daily use or tuned builds.
• Adjustable Multi-Rate Billet Actuator — includes multiple springs so you can customize boost pressure and adapt to varying performance goals or tuning requirements.
• Complete Bolt-On Kit — includes all needed housings, oil lines, gaskets, studs, and hardware, simplifying installation for compatible EJ single scroll engine setups.