Features:

The head flange is made of 3/8 " laser cutting plate with chrome plated surface for corrosion prevention;
All joints TIG welded for resistance against cracking and wearing;
We included a Y-shaped tube which designed to allow the exhaust gasses to flow more freely from each cylinder and combine in a more efficient manner
Vehicle type：Fit for 1999-2006 Chevy/GMC/GMT/ Silverado/ Sierra 1500 SUV (2WD/4WD) 4.8L/5.3L/6L.(4WD may require trimming to install)
 
Description:
Color:silver
Header Inlet Size: 1.75"
Header Outlet Size: 3"
Material: T304 Strainless steel 
Surface treatment: 3 Stage polish finish
Type: Long Tube Exhaust Headers
 
Package Included:
1 set of Header+Y-pipe; Gaskets & Bolts & Head Gaskets.