Xtreme Performance Exhaust 5 inch round straight through race mufflers are designed for maximum exhaust flow and an extremely aggressive performance sound. Built with a true straight through internal design and no sound deadening packing material, these mufflers deliver a raw, loud, race inspired exhaust tone that is ideal for high performance street and track applications. The unrestricted core design helps reduce backpressure and improve exhaust flow for better throttle response and overall performance. Constructed from high quality stainless steel, these mufflers provide excellent resistance to heat, rust, and corrosion for long lasting durability in demanding environments. The compact 5 inch round body with a 7 inch body length offers an aggressive performance profile while still producing a deep, powerful exhaust note. Perfect for muscle cars, hot rods, race cars, trucks, and custom performance exhaust systems, these mufflers are built for enthusiasts looking for maximum sound and flow without the restrictions of traditional packed mufflers. Designed for universal weld on installation, Xtreme Performance Exhaust race mufflers are ideal for custom fabrication projects and aggressive performance builds where sound, durability, and high flow performance are the top priorities.