After diagnosing the spun rod bearing the decision to build rather than replace became the best option. After selling off all the old 5-speed wrx parts and began a fresh build on a refreshed and honed Ej207 semi-closed deck block https://www.youtube.com/watch?v=zVfO8LKrn7Y&t=4s 1.7 Bar of Boost delivered via Turbo Technics S215B Turbo, Uk Spec Sti heads with AVCS and TGV Delete, Forged Mahle 2618 (1mm oversized) Pistons, Manley Steele Rods, ARP 11mm Head Studs, RCM Head Gaskets (0.78mm), RCM Unequal Length Manifolds (for that undeniable Subaru thump), Venturi up pipe, 11mm spaced oil pump, de-capped STI Pink injectors (800cc fuel matched @3Bar), Billet Fuel Rails, RCM 340 LPH Fuel pump with RCM Surge tank, -6 An Solid Fuel lines, RCM Fuel Pressure Regulator, Perrin 4Bar Map Sensor, Endless fittings, wiring and Hours upon hours of labour. The car running the Full UK Spec 6-speed gearbox and diffs, Stage 2 Competition clutch, and running 99 octane VPower. The car was Mapped by Andy Carr @ TEG Sport to 529 BHP https://www.youtube.com/watch?v=hfWlgI6-5yo