13 HP and +12 lbs. x ft. Torque max gains Outflows factory intake by up to 22% High Quality One-Piece Roto-Molded Sealed Housing with Auxiliary Air Inlet Built-In Sight Window Provides Easy Inspection of Filter Without Disassembly Unique Filter-to-Housing Interface for Easy Installation (US PAT 9440175) CAD-Designed Roto-Molded Intake Tube w/ Resonance Chamber Pro 5R oiled 5-Layer Progressively Finer Mesh Cotton Gauze Oiled Media for Maximum No Cutting or Drilling on Factory Parts for Faster Installation.