Fit For SWM G01 G05 1119100-D02 1119100-D03 Intercooler Assembly. OEM NO. : 1119100-D02 1119100-D03. By significantly lowering the temperature of air compressed by the turbocharger, the intercooler increases its density, allowing more oxygen to enter the cylinders for combustion. Reduces compressed air temperature before it enters the engine intake, increasing oxygen density for more efficient combustion. Lowers intake air temperature to prevent engine knock and allow safer, more aggressive ignition timing., Manufacturer: HGCXBYAP