Areyourshop Air Filter Fit For Yamaha YZF 1000 R1 2004-2006 OEM Air Filter This racing air filter has just two layers of cotton to provide even lower air restriction than our replacement air filter for street vehicles Condition: Brand New Air Filter Shape: Trapezoidal Filter Material: Cotton Gauze Package Quantity: 1 Color: Same As Picture Show Fitment: Yamaha YZF R1 2004-2006 Easy installation. No Installation Instruction