The OTR 4" To 3" 12-Gauge Aluminized Steel Exhaust Connector is the perfect solution for your exhaust system needs. It is made from aluminized steel for added corrosion resistance and features de-burred and finished end cuts for safe handling. The notched ends make for easy installation where applicable. This connector is made in the USA and will provide a reliable and durable connection. FleetPride is your First Click in Heavy Duty®.