Dird, statement under section 161(3) CrPC is no evidence, it can only be used in the court to contradict the maker of the statement and if you have made some statement under the act then you can change that statement and very well say that police did not record so and so or recorded which you did not state. You would be subjected to cross examination by the opposite party means if you are Prosecution Witness (ofcourse you are) then the defence can contradict you against your earlier statement.
The statement which you would be submitting in the court as PW is called examination-in-chief or chief examination and if you do not tow the line of prosecution and if it goes against prosecution then you could be treated hostile and even prosecution can cross examine you.
But if you can withstand the defence cross examination and if you are true then go ahead otherwise dont ruin some innocent's life. You may have some personnel grudge against anybody but please don't implicate him falsely in a criminal case. Rest is up to you because I believe in life after death.