Suits 38, 40, 42, 45, 48 DCOE Weber carburettors K&N Custom Air Filter kits are designed to allow the maximum performance from your carburetors, yet keep the dirt on the outside where it belongs. These assemblies come with custom chrome top and base plates and the famous K&N High-Flow Washable Air Filter.   Part 56-1310 Product Specifications Product Style: Custom Assemblies Replacement Filter: E-3321 Top Style: Metal Height: 1.75 in (44 mm) Inner Wire: No Outside Length: 7 in (178 mm) Outside Width: 4.5 in (114 mm) Top Material/Finish: Chrome Weight: 1.3 lb (0.6 kg)