Greddy EVOlution GT Exhaust 2009-2014 Nissan 370ZThe EVOlution GT for the 2009 2014 Nissan 370Z is not only ideal for turbocharged VQ37s but also makes great power for normally aspirated applications. Dyno test on a N A car gained as much as 16whp 19ft lbs, with more expected for turbo use. The dual cat back exhaust progresses from a 2. 5 Y that transitions smoothly into 3" X pipe crossover, to dual resonator for equalizing exhaust pressures and improved sound control. Aggressive dual EVO muffler