Spectre Performance 8130 Small Air Filter Heat Shield Easily installs under the filter clamp Hand fabricated polished aluminum For 3 inch flange universal air filters Fits most cone shaped filters with a maximum base diameter of 6.5 inches and a length up to 7 inches Shielding the filter from heat results in more power Maximum Diameter	8 in (203 mm) Minimum Diameter	6.938 in (176 mm)