GRAND ROCK Grand Rock S4-120EXA STACK STRAIGHT,4"X120,ID/OD ALZ Part No: S4-120EXA

The Grand Rock S4-120EXA stack straight tube offers a robust solution for truck exhaust stacks and aftermarket customizations. With a 4-inch inside and outside diameter and a full 120-inch (10 ft) length, this aluminized steel tube ensures excellent flow and durability in heavy-duty exhaust systems. Its construction safeguards against corrosion and heat, making it suitable for demanding environments and commercial truck fleets. Whether you’re replacing worn tubing or fabricating a new stack, the S4-120EXA provides long-lasting performance. Supplied by Wofford Truck Parts, you get a trusted brand paired with quality aftermarket support.