The STI inlet manifold is exactly the same as as WRX barring the paint, I think the STIs have the tumbler deletes where as the WRXs have the tumblers however this is a separate component that sits between the manifold and the heads. The only really different inlet is the spec C that is a one piece unit, these are considered better but not by much compared to a full tumbler delete, the issue is that spec c's use different fuel rails.
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2005 Spec B 6MT - KiDO tuned (~270Bhp)
Custom exhaust - Cosworth filter - Samco Intake - Tints - Bilstein B8/B6 & STI springs - SuperPro ALK - Whiteline positive shift kit, rack mounts, rear adjustable camber bushes, front ARB mounts & strut brace, 20mm rear ARB with AVO mounts, - Hardrace Gearbox and pitch mounts - Prodrive PFF7's - Front Brembos - Kenwood CarPlay - 1/2 carbon grille - STI front splitter
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