This is a new 5-Piece set of Polished Stainless Steel Exhaust Headers & Y-Pipe for 1999-2006 Chevrolet and GMC 1500 2500 Trucks with 4.8L or 5.3L engine.  Part # GH-CC99+YP

Upgrade your exhaust system with these high-performance exhaust headers made for 1999-2006 Chevrolet and GMC 1500 and 2500 GMT800 models with 4.8L or 5.3L engine. These headers are designed to improve your vehicle's exhaust flow, resulting in increased horsepower and torque.

Features:

• Polished Stainless Steel Construction
• Mandrel Bent Tubing
• EGR Provision
• Air Injection Fitting Provisions for 1999-2002 Chevy Trucks that have Air Injection
• Inlet / Outlet: 1.875" (8x Manifold Ports) / 2.5" (Outer Diameter)
• Main Pipe Diameter: 2.5"
• 3/8" CNC Machined Flanges
• Standard Graphite Manifold Gaskets and Mounting Hardware Included

Applications include:

• 2001-04 GMC Yukon (except 2003 GMC Yukon SLT Sport Utility 4-Door 5.3L)
• 2000-04 GMC Yukon XL 1500
• 1999-05 GMC Sierra
• 2002-05 Chevy Avalanche 1500
• 1999-05 Chevy Silverado 1500
• 2000-04 Chevy Suburban 1500
• 2000-04 Chevy Tahoe

Note: Flanges are steel.

2001 Chevrolet Silverado 1500 LS Standard Cab Pickup 2-Door customer stated fit -perfectly