J2 Engineering J2-CBE-DS-034 Stainless Steel Cat Back Exhaust System [Compatible with 09-13 Infiniti G37 Sedan 4-Door]

Upgrading vehicle's exhaust system is a great way to build horsepower, free up trapped torque, and improve upon restrictive factory systems. The larger pipes, low-restriction mufflers, and tuned resonators of a well-designed performance exhaust system can make a world of difference on your vehicle. The net result is lower auto exhaust backpressure, more horsepower, more torque, and a much better sound.

• 【FITMENT】Compatible with 2009-2013 Infiniti G37 Sedan 4-Door
• 【Quality Construction】Made of High Quality T-304 Stainless Steel with Computerized Mandrel-Bends for Strength and Durability. TIG welded CNC machine flange for resistance against pressure and corrosion.
• 【Enhance Performence】Dyno proven to instantly increases 15 - 25 horsepower / low end torque. Aggressive deep and smooth tone while ensures smooth exhaust gas flow, increase engine output and efficiency.
• 【Muffler & Diameter】4"(Od) dual rolled Muffler tip/ 2. 25"(Id) inlet/ 2. 375"(Od) main piping
• 【Design】The larger pipes, low-restriction mufflers, and tuned resonators of a well-designed performance exhaust system can make stunned effect on your vehicle: lower auto exhaust back pressure and a much better sound.