Borla 20-25 Toyota GR Supra ATAK Cat-Back Exhaust System w/ Black Chrome TipsThis BORLA Cat Back system is specifically tuned for performance and sound on the GR Supra's 3. 0L twin scroll turbocharged inline six engine. Our system is designed to be drone free so you can get the head turning sound of the ATAK and still enjoy a comfortable sound inside the vehicle during cruise. The system includes our Polyphonic Harmonizer technology which utilizes patented units that contain pipes of different diameters and lengths to create