I have a 2000 4.7 4X4-Tundra with K&N Intake and Flowmater Delta Exhaust, truck is getting old, any suggestions?

I know i will have to change the spark plugs, i was going to use NGK.

Also I wanted in the near future get a supercharger for it, I know that Toyota no longer makes one, put i was told that i can use the Seuoia supercharger all i have too do is change a hose.

If anyone can help me out that'll be great!