ITG air filter compared to Piper cross foam filter with surface area calculations and PiperX fitment issues.

Two air filters side-by-side with diameter and surface area measurements; ITG filter shown larger with 90% more filtering surface than PiperX alternative.

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See all Powertrain figures for the Fortwo (450), or browse the full figure library. Part numbers and callouts are community-sourced and cross-referenced against the manuals — confirm with your VIN before ordering.