I have a 2008 Honda Civic Si and it runs great. But, whenever I'm driving at about 6mph - 20mph with the AC on, I can feel a drag in the engine (power loss) whenever the AC compressor engages. The drag only lasts as long as the compressor is in engagement. I also want to note that the AC compressor works fine with no noise or other visible problems.
I've had this concern ever since I owned the car some 2 years now. It's annoying and doesn't seem like the normal behavior. Any help/diagnostic would surely be appreciated. Thanks