Spectre's tubing, couplers, and related components allow you to design your very own custom cold air intake systems. Manufactured using high quality materials, many Spectre tubes feature a 6063 grade polished aluminum finish. This tubing is available in various shapes and sizes ensuring optimum fit and function, including: straight, 30, 35, 40, 45, 60, 75, and 90 degree bends and U shaped. Several applications are mandrel bent..