The thing is when I purchase my wheels 18x7.5 w/ 42offset, i did not know that this disabled me from lowering my car. After searching for different springs, there were no other options...

This idea was given to me by someone who made the same mistake as I, and he offered this option. I personally never heard of this procedure before, and I just wanted to do some research and talk to a professional about doing this to my new wheels. I understand what the procedure is accomplishing, but I am not sure of the consequences of this action. Hence asking if anyone knew a place where they did this sort of a thing.

Thanks for the reply and giving me a warning! Really appreciate you looking out.

PS: do you think it would "weaken" my wheels??