CORSA Performance Pro-Series tips are dual-walled stainless steel. The dual-wall is designed to protect against heat distortion and maintain visual appeal. Each tip is adorned with high-definition, precision laser engraving that provides unmatched detail. Single 4.5in. Black PVD Pro-Series Universal Tip Kit (2.5in. Inlet-Clamp Included) One tip in kit; Durango requires 2 tips