Not even that bigger. Enlargement surgery is highly risky (even if this guy died of a heart attack), and only promises like 2cm in additional length. Girth increases are slightly more substantial though. It sounds like he was getting the type that is just an injection of fat in the dick, which is comparatively less risky.

The risks involved are wild. A sizable amount of doctors doing enlargements have questionable standings with their local medical boards. It's also not uncommon to find places that are very vague about what they are adding or changing about your body, while promising extreme results. Infections, loss of function, constant erection due to the addition of harder structures, decreased sensitivity are some of the more alarming, yet not uncommon risks. As it's an elective, specialized surgery, practices are often aggressive and manipulative in dealing with clients/potential clients. Is not unheard of for places to require multiple surgeries, when it turns out there were complications with the first one.