Borla 05-08 Chevrolet Corvette Coupe/Convertible 2dr 6.2L 8cyl AT/MT 6spd ATAK SS Catback ExhaustBorla has developed of a revolutionary new exhaust technology that enables their engineers to deliver unprecedented vehicle specific control over the acoustical note of an exhaust throughout the RPM range, while retaining 100% of the power adding capabilities of Borla? s patented Multicore design. Called ATAK(Acoustically Tuned Applied Kinetics), this exclusive technology (U. S. patent #5,248,859) produces the highest available dB (decibel) levels in