Greddy EVOlution GT Exhaust 2007-2014 Infiniti G37The EVOlution GT for the Infiniti G37 Coupe is not only ideal for turbocharged VQ37s but also makes great power for normally aspirated applications. 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 canisters are angled to match the G37 looks while making room for the factory EVAP canister.