Spectre Performance 9604 4" Filter Adapter, Black
Product Description
Spectre Performance 9604 4" Filter Adapter, Black
- 4 inch diameter stack
- Adapts a 6 inch filter to 2.5 to 4 inch applications
- Adds 1 inch to 1-5/16 inch to height of filter
- Lifetime warranty
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 2.5 inch 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.
Technical Specifications
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