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Velocity Stack Adapter

Spectre’s air filter inlet adapter and velocity stacks are designed to allow you to attach a larger 6 inch inside diameter flange onto a smaller diameter air intake tube. The Velocity stack also has a curved-inward inlet to help direct the flow of air into the air intake tube helping to increase air flow.

Available Products
  • 9601
    9601
    FILTER ADAPTER; 2.5" VELOCITY STACK
  • 9602
    9602
    FILTER ADAPTER; 3" VELOCITY STACK
  • 9603
    9603
    FILTER ADAPTER; 3.5" VELOCITY STACK
  • 9604
    9604
    FILTER ADAPTER; 4" VELOCITY STACK
  • 9606
    9606
    FILTER ADAPTER; 4" OFFSET VELOCITY STACK
  • 9609
    9609
    FILTER ADAPTER; 4" ANGLED VELOCITY STACK
  • 9610
    9610
    FILTER ADAPTER; 4.5" VELOCITY STACK