Mines a UK car but with the JDM style 3 piece Miltek from Powerstation/Litchfield with the cat in the mid section, I think it's a special item that's specifically available from them (not even listed on the Miltek site).
Some systems have a longer downpipe and centre section to effectively remove the downpipe cat and cat pipe cat, These only work as a full system, e.g. The GRD exhausts/Miltek
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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