You will be required to screw four screws into your bumper. Either make the holes ahead of time of screw them in with pressure
yes it can but not recommended by the factory.
If they are of a similar vintage, yes
Yes
Nope
Probably
dodge factory speaker sizes are 6"x9"
18 inch.
factory recommends 100,000 miles.
255bhp.
My 2007 Charger R/T is completely stock and if factory limited at 130mph
yes it can, there is plenty of room and if your charger was a 318 from the factory it will bolt right in.
I believe it was the A-914 tranny.