Spectre 9603 Air Intake Velocity Funnel, 6 Inch Filter to 3.5 Inch

Spectre’s air filter inlet adapters and velocity stacks are designed to allow you to attach a larger 6 inch diameter flange air filter onto a smaller diameter air intake tube. The velocity stacks are available with different neck sizes, to match 2.5inch to 4.5 inch tubes. In addition, Spectre velocity stacks also have a smooth funnel shaped inlet that reduces restriction and turbulence of incoming air.

• Spectre’s air filter inlet adapters and velocity stacks allow you to attach a larger 6 inch inside diameter cone air filter on a smaller tube
• Spectre velocity stacks also have a smooth funnel shaped inlet that reduces restriction