This 524hp Subaru Impreza WRX STi hits the dyno with equal length headers and a screamer pipe, unleashing the full voice of its EJ25 engine. Expect aggressive pulls, turbo spool, and raw boxer engine ...

When last we left our Project EJ25 build (May '14 issue), we assembled our bottom end using some key components, including Carillo Pro H-Beam connecting rods, JE Pistons, and a Cosworth high ...

This 2019 Subaru WRX STI in World Rally Blue Pearl, an original-owner, mechanically stock sedan with 37,200 miles, offers a thrilling, unmolested driving experience with hydraulic steering and a ...

The Subaru Impreza STi producing over 500HP, captured on the dyno with a screamer pipe setup. Featuring the EJ25 engine’s signature turbo noises, flames, and pure boxer sound during dyno pulls. Judges ...