It will make the necessary adjustments to overcome the increased drag. Of course, this is assuming that you have kept the performance system maintained with regular tune ups and services. The cooling system will address the increase in temperature caused by the air conditioning. However, if the cooling system is not in good working order, major engine damage could result. If you are going to be towing a trailer this summer, make sure that the oil in your transmission is being adequately cooled.
Heat is a transmission killer.
Normally, transmission fluid is cooled within the transmission oil cooler. During towing, the fluid gets hotter and the standard oil cooler may not release the heat fast enough. Summer temperatures accelerate the crystallizing, glazing and cracking of your brakes as they wear. Hauling a trailer intensifies the effect. If the brakes do not start in good condition, there could be trouble.