All front dress parts are different, just like the headers. The Explorer has the best operating system Ford has used on a pushrod V8. The OBDII system is much better than the older operating systems. You can make changes, and retune the PCM to gain original driveability. That includes superchargers, stroking, major cam or compression changes, etc.
The total costs are about the same as the older Mustang combinations. The Explorer is almost a thousand pounds heavier, so always consider the RPM range, and need for low and midrange torque. Don't stick a big cam in it, and think 6000 RPM will make the truck faster. Good luck,