Includes front and rear headers for true dual exhaust ⢠Larger 2-1/4â diameter full-length plasma-cut heat shields (versus 2â heat shields on original Cross Dressers) for better cooling and cleaner looks ⢠Features the new 18 x 1.5mm O2 sensor port which allows use of aftermarket closed-loop fuel management systems for more performance and greater reliability ⢠Accepts most aftermarket mufflers that fit OEM headers.