Are you still running cats or have you switched to HFCs or TPs? Have you considered a tune? Ecutek recommended.
If all is well, probably just the ECU figuring out the new airflow...
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2011 370Z 6MT Sport Gun Metallic | ARC | CJM | Ecutek | FI | Fujimura | R2C | SPL | Stillen | TWM | Z1 | ZSpeed |
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