V4 GT2259 Turbocharger 52-72mm Compressor

The SoCal Porting V4 upgrade is a remanufactured turbocharger meticulously engineered for the 2022+ Subaru VB WRX GT2259. This upgrade has undergone extensive back-to-back dyno testing with leading engine builders and tuners to ensure optimal performance. At its core, the V4 features a 52-72mm compressor wheel, min. 57lb, manufactured using a state-of-the-art 5-axis point-milling process. Its swept blade design minimizes drag, allowing the 10-blade wheel to achieve the best possible spool without compromising flow. The Garrett turbo housings are preserved to maintain a factory fit and a discreet, stock appearance. SoCal Porting fully porting the turbo housings to remove inherent casting restrictions. This process enhances the performance of the high-flow turbine shaft across the entire RPM range, maximizing usable power for the FA24 engine. The porting scope includes critical areas such as the wastegate, turbo inlet and outlets, and the BPV passage. The V4 upgrade package includes the billet wheel, turbine housing machining, recontouring of the compressor cover, clipping, a full rebuild, and comprehensive porting and polishing. Optional ceramic coatings for the turbine housing ($80) and compressor cover ($40) are available in various colors, including blue titanium, thermal gray, and black. Additionally, optional turbo inlet porting is offered for $60.