We test different filter combinations to show how each perform on a flow bench. All tests performed on a chrome 1 inch dropbase except for the velocity stacks. All tests performed using a superflow 600 at 5.5" of water.
RPC 14x3 cotton
Edelbrock 14x3 cotton
Edelbrock filter lid
Summit powerlid (looks same as rpc lid).
Paper 14x5
Paper 14x3
Chrome lid