Spectre's polished aluminum inline airbox with air filter has a 4 inch inlet and outlet. This cylindrical air box has an outide diameter of 5 inches. It allows you to create a custom air intake that feeds the engine cool outside air for more power.

Features:

• Includes a low restriction performance air filter
• Polished aluminum housing
• 4 inch inlet/outlet
• 5 inch diameter housing
• 10.1 inch length

Specifications:

• Package Contents: 1 Inline Airbox, 1 Air Filter
• Package Quantity: 1
• Warranty: 90 Days
• Color: Polished
• Product Style: Spectre Air Boxes
• Replacement Filter: Hpr9832
• Height: 5 In (127 Mm)
• Width: 5 In (127 Mm)
• Length: 10.1 In (257 Mm)
• Weight: 2.7 Lb (1.2 Kg)
• Product Box Height: 11.9 In (302 Mm)
• Product Box Length: 6.7 In (170 Mm)
• Product Box Width: 6.6 In (168 Mm)