[MichaelDay]

I have not been thrilled with the temperature of the air coming out of the AC on my 03 Turbo. The dealer checked it and said it is "in spec". I checked the Service Manual and found the following:

A/C PERFORMANCE TEMPERATURES- (NON-TURBO ENGINES ONLY)
Ambient Temperature 21°C (70°F)
Air Temperature at Center Panel Outlet -2 - 6°C (29-42°F)
Compressor Discharge Pressure 999-1206 kPa (145-175 PSI)
Accumulator Out Pressure at Service Port 122-221 kPa (18-32 PSI)
Ambient Temperature 38°C (100°F)
Air Temperature at Center Panel Outlet 11-19°C (52-65°F)
Compressor Discharge Pressure 1584-2136 kPa (230-310 PSI)
Accumulator Out Pressure at Service Port 220-324 kpa (32-47 PSI)

A/C PERFORMANCE TEMPERATURES- (2.4L TURBO ENGINE ONLY)
Ambient Temperature 21°C (70°F)
Air Temperature at Center Panel Outlet 6 - 16°C (43-60°F)
Compressor Discharge Pressure 1139-1795 kPa (165-260 PSI)
Accumulator Out Pressure at Service 195-319 kPa (28-46 PSI)
Ambient Temperature 38°C (100°F)
Air Temperature at Center Panel Outlet 17-28°C (63-83°F)
Compressor Discharge Pressure 1932-2484 kPa (280-360 PSI)
Accumulator Out Pressure at Service 332-512 kpa (48-74 PSI)

So at 100 degrees, the air coming out of the non-turbo AC vent is 11-18 degrees cooler than out of the turbo AC vent. That would result in reduced AC cooling. The AC compresssor and accumulator pressures are also significantly higher on the turbo model than the non-turbo.