No transformation = no salvation. How can you encounter the living God and not be changed?
Salvation is not just a forensic exchange—if it is that at all! No! It is an encounter with God that results in the living God taking up residence in you—"Christ in you" is how Paul describes it. That has to result in changes. But, always remember, those changes are wrought by the presence of the Holy Spirit in you and never as a result of self-effort. All by grace, always by grace. All freely available to all through the atoning sacrifice of Jesus on the cross, sealed by the resurrection and confirmed by the Holy Spirit.
Now that's good news!