For 4.8L 5.3L V8 Chevy GMC Avalanche Silverado Sierra Tahoe Headers Pair 00-06:
- 100% brand new, Never been tried or installed
- Outlet Size: 2.5"
- Primary Tube Size: 1.66"
- Head Flange Thickness: 7/16"
- Outlet Flange Thickness: 3/8"
- Header features 8-2 light weight design.
- CNC machine flanges with TIG and MIG welded construction.
- No instructions included, Professional installation is highly including: