Borla 11-12 Mustang Shelby GT500 2dr 5.4L 8cyl Agressive ATAK Exhaust (rear section only)

ATAK, Acoustically-Tuned Applied Kinetics, technology is based on specifically-tuned attributes of the internal muffler cores, which are calibrated on a vehicle-by-vehicle basis to deliver the most desirable sound. This is our most aggressive sound. Even though the sound on the exterior is uncompromising, the sound in the cabin is devoid of harsh resonance, a product of painstaking engineering and over 30 years of experience.