Only $1,600 FULL KIT of Management & Air Suspension AIRMEXT BMW E39 540i

This time, I personally imported a very low-priced air suspension kit. I didn't know if it would be safely delivered, if it would fit in my car and if it would properly function, but I just went ahead to buy it with momentivation Well, it's here anyway.
So what's going to happen with this air suspension, manufactured by AIRMEXT (maybe nobody knows about this company) that cost me only about 190,000 yen.
English subtitles will be added later.
Note 1: AIRMEXT does not sell air suspension kits for BMW E39. We just guessed and decided that the kit for E38 740i would fit in and bought the product.
Note 2: Because this project is still ongoing, we do NOT recommend buying the product until the completion of this video series. We do not know anything about the quality and warranty.