JBA Cat Back Exhaust System for Chevy GMC Tahoe Yukon 5.3L V8 for 2015 2020 40 3052 bright earth 2L V8 1979 1991 J8132372 CRN 2L V8 1979 1991 Dodge W150 318 5 Basic Operating RPM Range 1500 8000 Brand Holley Carburetor Flange Square 4150 Carburetor Studs Included No Category Intake Manifolds CNC Ported No Color Natural Construction Cast Aluminum Cylinder Head Port Shape Rectangle EGR Port No Emission Code 3 Engine Chevrolet Small Block Gen I Engine Chevy Big Block V8 Finish Natural Flange Style 4150 Fuel Injectors Included No Fuel Rail(s) Included No Fuel System Type EFI Gasket Or Seal Included No Grade Type Performance Intake Port Gasket(s) Included No Manifold Type Hi Ram Material Aluminum Nitrous Bung(s) Included No Plenum Finish Natural Product Type Intake Manifold Top Removable Runners No Removable Top Lid Yes Single Or Dual Plane Type Single Plane Throttle Body Included No Warning California Proposition 65 Warranty Limited 90 Day which is know to the State of California to cause cancer or birth defects of other reproductive harm the capacity for power in a JBA Exhaust System gives us the edge