Endo

Endo are an automative-based manufacturer appearing in Grand Theft Auto IV and Grand Theft Auto Online.

Description
. The company appear on the intercooler of the Sultan RS, suggesting they manufacture intercoolers, more specifically for Karin.

The modifications available for the grille of the Sultan RS in GTA Online also suggest they manufacture intercooler fans installed in front of the intercooler.

It is unknown what the company are based on, however their appearance on the front of the intercooler makes it likely they are based on Forge, Airtec Cooling or APS.