Rev9power (HP-MF-2JZ-T4C-11G) HP-Series Toyota Supra 2JZGTE Equal Length T4 Stainless Turbo Manifold Type-2 (3.1mm wall thickness) - 304 stainless steel - Raw finishing / non polished - Equal length runners design for maximum flow - 3.1 mm wall thickness ( will not crack like the cheap ones out there ) - TIG brass style welded cnc machine flange for resistance against cracking & wearing - 40 / 50mm 4 bolt wastegate flange - T4 flange ( fits all size t4 flange turbo)