The Acura RL rear bumper is also fondly referred to as the Acura RL bumper cover and is a piece of plastic that effortlessly bolts onto the lower rear portion of the vehicle that you drive. The majority of cars driven have the Acura RL aftermarket bumper on them courtesy the availability of aftermarket options in terms of styling. The Acura RL custom rear bumper is usually made of hand laid fiberglass of supreme quality and have the tendency to endure crashes. They contain a cut-out that allows the exhaust tip to exit the vehicle. The Acura RL carbon fiber rear bumper is made up of carbon fiber or ABS plastic and is considered to be highly effective.