Gibson Performance Exhaust's FJ Cruiser cat-back system was along for the ride on the trail run with All-Pro. The system is a true bolt-on and can be installed in a driveway using basic handtools. The system includes all mounting hardware, aluminized tubing, and a stainless steel Superflow muffler. The Superflow muffler has a much lower profile than the OEM part, giving FJ owners nearly 3 inches of additional ground clearance under the muffler. Superflow mufflers feature Convergent Flow Technology and have no packing to blow out or internal baffles to come loose. Superflow mufflers are available in aluminized steel or stainless steel, carry a lifetime limited warranty, and are made in-house by Gibson in the USA.