With over 400 internal muffler designs based on the technologies shown here, BORLA® offers exhaust systems to suit every vehicle, driving style and sound preference. Muffler body shapes, internal core characteristics, flow dynamics and more are tuned and harmonized to maximize performance and pure driving excitement. Just the right blend of packing filament, straight-through core dimensions, core perforation pattern, and cylindrical shape to deliver the intoxicating BORLA® “Sound of Power” with every squeeze of the throttle.