800HP Subaru Impreza Gets Sequential Gearbox!! – First Track Test BRUTAL Shifting, Sounds & OnBoard! Acceleration & Sound Drag & Track by turboandstance - November 27, 2018November 27, 2018 Watch and listen to this 2003 Subaru Impreza STi fitted with KAPS 6-speed sequential transmission doing a few laps around Franciacorta circuit. The engine has been built by ABperformance and it features a Precision 60/62 turbo, 2.1 stroker kit, Process West intake manifold and Tomei Expreme Ti Titanium exhaust! Leave a comment