bo 60917 OBX Performance Exhaust Header Mazda RX8 04-09 RX-8 RX8 1.3L 13B High quality SUS-T304 full stainless steel for best look and durability Precise CNC machined with DUAL-TIG welded construction Value Added Direct Bolt On Set Up Without Any Modification, Accessories included as shown Lifetime warranty from manufacturer defects OBX Genuine Products Design and Quality of OBX U.S.A