is IMEI changing possible ?

Dear All;

I know IMEI changing is not legal. I want to learn if there is any way to replace IMEI for Hongmi 1S wcdma.
I will replace IMEI number of my Hongmi 1s with my old phone's IMEI number.

I am from Turkey, Government is charging Tax for enabling IMEI numbers. If you did not buy it from official Turkey Market.

Thanks in Advance,
Regards