OBX Performance Exhaust Header 92-97 Lexus SC300 6Cyl 3.0L 2JZ-GE 2-O2 1-EGR 93-97 Supra Precision computer CNC machined flanges with TIG and MIG welded construction Utilizes factory 02 sensor position Dyno Tested Track Proven To Increase Torque And Horse Power Value added direct bolt on set up with Gaskets & Hardware included Backed by Limited Lifetime warranty from manufacturer defects