OBX Full Exhaust Header 7.0l Z06 Chevy Corvette Ls7 Z6 Off-road Header Fit For 2005-2008 Chevrolet Corvette 7.0L Z06 LS7 V8 Come with cat replacement resonators 1.7" OD primary 3" All The Way From Collector To X-Pipe 3/8" flange thickness