The 03-04 Mustang cobra is slightly different, but all the major components and connections are the same. The principal modification to the A/C system from installing the KC system is the replacement of the condenser to evaporator tube, with a line that goes from the condenser to the KC unit, and a line from the KC unit to the evaporator (at the firewall). The flow path of the refrigerant at the end of this installation is:
Compressor – condenser – KC unit (including orifice tube) – evaporator – accumulator – compressor
The flow path of the coolant at the end of this installation is:
Reservoir – pump – heat exchanger – KC unit – intercooler – reservoir
Read through the all the instructions before starting to improve your understanding of all the steps
Make sure to follow standard safety rules associated with automotive maintenance and repair
Suggestions and tips in the figures and text are denoted by an *
Installation
* If the vehicle has been lowered, or you have difficulty reaching underneath, putting the front end up on some jacks maybe helpful.
1. Evacuate the A/C system. Do not vent the refrigerant to the atmosphere, it is toxic and harmful to the environment. Most service stations with A/C equipment can do this.
2. Disconnect the battery. (safety precaution).
3. Remove the front bumper cover. Follow the service instructions provided in Figures 3 and 4. You do not need to remove the headlights, just be careful to make sure the tabs under the headlights go back into their correct locations upon re-installation. An interior trim tool would be helpful to pull the two retainers from the bottom of the cover. The pin retainers on front of the inside fenders (Figure 2) are actually screws that attach the inner wheel vendors to the front bumper cover. Pull out the inner fender to gain access to the two bumper cover nuts inside. Don’t forget to disconnect the fog lamps, the connectors face the floor.

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