The Western Star Replacement Y Pipe is a practical and reliable solution for replacing the OEM part number 23529-3444. Made with aluminized material and featuring a 5-inch diameter, this 4-bend ID/OD/OD Y-Pipe is designed to fit most Western Star Heritage makes and models. With its air ride cab and sold individually, this replacement Y pipe offers convenience and durability. Upgrade your vehicle's exhaust system with this high-quality product that ensures optimal performance and longevity.