I tuned this 370Z back in December in this video:
• Video
It had only AdminTuning intakes, everything else was completely stock. After tuning was completed, it made 300whp/250wtq in the cool December weather. It was obvious that the stock cats and stock exhaust was a restriction.
To accompany the other tests I have done on this platform, I documented the difference after this customer installed Motordyne headers, ISR Y pipe, and Tomei catback exhaust. In spite of the increased temperature and humidity from retuning the car in September, the results were a significant 26whp peak gain with 30+ whp gain in the higher RPMs.
Final numbers: 327whp/258wtq
(Check engine light is on since the upstream O2s were not extended to fit the longtube headers, the car was tuned on the dyno's wideband).
16 сен 2024