This cat-back exhaust system is constructed of 2-1/2 IN mandrel-bent 304 stainless steel tubing for maximum strength and durability. This system features high-flow 304 stainless steel polished mufflers, producing a aggressive sound. The mufflers has a polished finish for ultimate corrosion resistance. Finishing off this exhaust system are dual 4-1/2 IN diameter carbon fiber 304 stainless steel clamp-on exhaust tips. The tips features an aFe POWER logo for a unique style. This system produces an aggressive sound unleashing all available horsepower and torque. Utilizing a factory style flange and hangers this system is a direct bolt-on system, which requires no cutting or modifications for a hassle-free installation. State-of-the-art computer-aided design technology is utilized for precise vehicle fitment. 100% MIG-Welded for race-proven strength and durability. Takeda 2-1/2 IN 304 Stainless Steel Cat-Back Exhaust System w/ Carbon Fiber Tips Infiniti Q50 14-15 V6-3.7L Infiniti Q50 14-15 V6-3.7L