Update your semi with an efficient method to direct fumes away from passengers, with the Power Products 4" Aluminized 90° Exhaust Elbow that ensures you're Ready for the Road Ahead. This replacement exhaust elbow pipes smoke and outputs away from the motor, to eliminate excessive noise and improve the overall performance of the engine. Engineered with de-burred and finished end cuts for safe handling. FleetPride is your First Click in Heavy Duty.