Get your semi truck ready for the long haul with a seamless connection of pipes, with the OTR 4" ID/ID Type Aluminized Exhaust Connector with Expertise Built In. Thanks to its ability to create a tight seal and prevent leakage, this replacement piece is the ideal option to join two different sized components together. Constructed with an aluminized body for improved corrosion resistance. FleetPride is your First Click in Heavy Duty.