Derale Performance High Output Dual RAD Fan & Shroud Kit # DER-16928 Rate_20 Tuned-length primary tubes for maximum

Tuned-length primary tubes for maximum exhaust scavenging and velocity

They are made of aluminum

NOS Sniper EFI Wet Nitrous Systems 4cyl 6cyl Engines 35 - 75hp # NOS07005

553 Intake

Maximum Fan CFM:1

Derale Performance High Output Dual RAD Fan & Shroud Kit # DER-16928 Rate_20 Tuned-length primary tubes for maximumDerale Performance High Output Dual RAD Fan & Shroud Kit # DER 16928 Electric Fan, Dual, 13 in. Diameter, Puller, 4,000 cfm, Black, Plastic, Each Puller: Yes Pusher: No Fan Diameter (in.): 13. 00 in. Fan CFM Range: 4,000 4,099 Maximum Fan CFM: 4,000 cfm Fan Quantity: Dual Electric Motor Type: Brushed Height (in.): 13. 875 in. Width (in.): 28. 625 in. Thickness (in.): 3. 250 Number of Blades: 11 blades Maximum Fan RPM: 1,670 rpm Blade Material: Plastic