Exhaust System KitATAK Cat-Back Exhaust SystemATAK Cat-Back Exhaust System; 3.5 in. Into Muffler Dual 2.25 in. Out; Incl. Connecting Pipe/Muffler/Hardware/4 in. Round x 12 in. Long Dual Rolled Angle Cut Long; Side Exit;FEATURES:Patented Straight-Through TechnologyPatented Multi-Core TechnologyUnleash Hidden HorsepowerDistinctive Borla Sound Of PowerAbsolute Best In Performance And DurabilityEnsure Maximum Flow And PowerCNC Manufacturing Ensures An Accurate FitMillion Mile WarrantyBORLA PERFORMANCE INDUSTRIES is the pioneer and leader in the design and manufacture of stainless steel performance exhaust. We began two decades ago as a manufacturer of exhaust systems for such "concours classics" as Rolls-Royce and Ferrari cars and have evolved into the premier manufacturer of today's performance vehicles for the street, off-road, and racing.