Save a new copy of the edited file (do not overwrite your original backup).
For most users, (latest version) or NFSMW Save Editor by nfsu360 have the most reliable Junkman top implementation. Look for:
Test in-game:
That’s where come in. In Need for Speed: Most Wanted (2005), these unique performance upgrades give you a massive boost over standard “Unique” parts. The problem? You only get a handful in the whole game.
Note: Some editors label the "Top" tier as "Ultimate Level 3" or simply "Junkman++". nfsmw save editor junkman top
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Make the intended edit:
The NFSMW save editor, specifically designed for the Junkman top speed challenge, will provide players with a valuable tool to overcome this difficult achievement. With its user-friendly interface and targeted features, the editor will simplify the process of unlocking the required speed and enhance the overall gaming experience.