Carbon Fiber Side Air Duct Cover Fairing Insert Yamaha YZF R6 2003-2005MDI Carbon Fiber Air Duct Covers for Yamaha R6. All our carbon fiber Air Duct Covers are made with an Autoclave process, which uses the highest quality TORAYCA PREPREG carbon fiber fabric from Japan. More information on the manufacturers specifications: Finishes and Materials! Cures at 400 degrees and a pressure of 5Kg cm. One of the most advanced techniques for making composite components is by using PrePreg carbon fiber reinforcement, cured under