Toyota FT86 / Subaru BRZ / Scion FR-S - HeaderHEA-FT86
2012 + for Engine FA20
Manifold: OD 42.7mm, thickness - 1.8mm
Up Pipe: OD 60.3mm, thickness - 1.8mm
Flange Spec: Manifold engine side - 12mm, 4 in 1 collector - 10mm, Up pipe flange are all 10mm
They are fully constructed out of T304 stainless steel, including the flanges!