How to tell Engines from modified to stock

[Flight23]

Hello mga ka tsikot. Ask ko lang panu ba malaman ang makina pag ibibalik lang sa stock from modified? Tia![emoji28]

[Flight23]

Hello mga ka tsikot. Ask ko lang panu ba malaman ang makina pag ibinalik na lang sa stock from modified? Tia!

[jut703]

Depends what kind of modifications. Drop in filters, aftermarket headers and exhausts, as well as piggyback ECUs are all visually identifiable. Just pop open the hood and anything that looks different is probably an aftermarket part.

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[Flight23]

Thanks jut703