Car Sluggish

ZoomZ

Hi guys,

2017 Nismo. I did a few upgrades over the winter and did my first drive today.

Installed FI TDX catback and Soho CAI.

Reverted back to OEM Flywheel and clutch ( removed Zspeed lightweight)

The throttle is extremely unresponsive and car does not want to accelerate with pedal to floor.

I tried to climb a short hill in 2nd gear, with pedal floored, and it was not accelerating.

No lurching or sputtering, or any roughness noted.

Is this normal for breathing mod updates such as mine? Am I only able to resolve this with a tune?

No CEL.

Thanks in advance

zz

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