OBX Performance Exhaust Manifold Header 02-06 ACURA RSX TYPE-S K20A2 Race Type High quality T-304 stainless steel for strength and durability Precision CNC machined flanges with DUAL-TIG welded construction OBX Genuine Products Design and Quality of OBX U.S.A Value Added Direct Bolt On Setup with Gaskets & Hardware included as Shown Backed by OBX Limited Lifetime warranty from manufacturer defects