My Corolla 2007 has inadequate AC cooling and yesterday I showed it to a AC technician, he said there is smaller compressor installed (japanese kabuli one) by the previous owner and I need to get the bigger compressor which will cost me 14000 rupees for the compressor and other things like gas etc will be separate. Please suggest me what should I do. I have had a bad experience with kabuli parts so I would prefer to get a new compressor.