The Borla CrateMuffler Resonator 400939 is a universal-fit exhaust component designed to enhance exhaust flow and sound quality. Constructed from durable stainless steel, this resonator features a 3-inch center inlet and outlet, with a 3.5-inch round body measuring 10 inches in length and an overall length of 14 inches. Its reversible design allows for versatile installation options, making it suitable for various custom exhaust setups. The resonator helps to reduce unwanted drone and improve exhaust tone, providing a balanced sound profile while maintaining durability under high-temperature conditions. Its high-quality materials and precise construction ensure long-lasting performance and corrosion resistance, making it an effective upgrade for enthusiasts seeking a refined exhaust note.

This resonator is compatible with a wide range of vehicles requiring a universal fitment, particularly in custom or performance exhaust systems. It is ideal for use in street applications, track days, or off-road builds where sound tuning and exhaust flow are priorities. The reversible design simplifies installation, allowing for flexible positioning within the exhaust system. Suitable for various vehicle makes and models, this resonator can be integrated into existing exhaust setups or used in new custom configurations. The kit includes the resonator itself, ready for bolt-on installation, and is intended for those seeking to improve exhaust sound and performance without extensive modifications.