12-13 Jeep Grand Cherokee SRT8 6.4L 8cyl Aggressive ATAK Exhaust (rear section only) Borla 11827

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.