I did not notice any adverse effects after changing my differential and transmission fluids. Are you able to use your EcuTek app to check run times to 60mph, 100mph, 1/4 mile, etc.? Other than getting it back on the dyno, I am not really sure what to suggest for you (without CEL codes present).
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'16 Pearl White Sport | Stillen Gen. 3 | Motordyne ART | Motordyne Shockwave | ZSpeed | Powertrix | EVO-R | Aeroworkz | Nismo | Z1 | EcuTek | Tuned by Seb @ SpecialtyZ
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