aFe Takeda 2.5inch SS Exhaust Cat-Back 09-13 Nissan 370Z V6 3.7L Polished TipsaFe Power is proud to introduce the all new Takeda Cat Back exhaust system for the 2009 2013 Nissan 370Z. This Takeda Cat Back exhaust system produced 12 horsepower and 12 lbs. x ft. of torque. This unique dual exhaust system is constructed from 2. 50" mandrel bent stainless steel and is TIG welded. An X pipe balance tube is used to equalize and evenly distribute exhaust pulses which minimizes exhaust drone and increases flow and performance.