Check the listing for details. GMC-CHEVY GMT800 V8 ENGINE TRUCK-SUV STAINLESS MANIFOLD HEADER&Y-PIPE&GASKET. Condition: New, Made in China. Listed at 319.99 USD. Air Intake: Filter: 4.00" Inner Diameter, 10.50" Overall Height Aluminum Charge Pipe: 3.75" Inlet / Outlet High Heat Tolerance Silicone Hoses: 3.75" Inlet / Outlet Header Exhaust: Inlet/ Outlet: 1.875" (8 X Manifold Ports)/ 2.500" (Outer Diameter) Main Piping Diameter: 2.500 Fitment: 01-04 GMC Yukon(except 2003 GMC Yukon SLT Sport Utility 4-Door 5.3L) 00-04 GMC Yukon XL 1500 99-05 GMC Sierra 02-05 Chevy Avalanche 1500 99-05 Chevy Silverado 1500Air Intake: Filter: 4.00" Inner Diameter, 10.50" Overall Height Aluminum Charge Pipe: 3.75" Inlet / Outlet High Heat Tolerance Silicone Hoses: 3.75" Inlet / Outlet Header Exhaust: Inlet/ Outlet: 1.875" (8 X Manifold Ports)/ 2.500" (Outer Diameter) Main Piping Diameter: 2.500 Fitment: 01-04 GMC Yukon(except 2003 GMC Yukon SLT Sport Utility 4-Door 5.3L) 00-04 GMC Yukon XL 1500 99-05 GMC Sierra 02-05 Chevy Avalanche 1500 99-05 Chevy Silverado 1500