There’s only a handful of colours that you can get matching bumpers with and they’re not all high impact. E-5 Bright Red is a colour you could get matching bumpers with. Want to get really wild? E-5 was also available on the shaker hood scoop so you could have a ‘70
In E-5 in colour matched front and rear bumpers, shaker scoop and even a red interior.
IIRC, Mopar is weird with their colour matched bumpers as IIRC, only E-5 is available on the rear bumpers. Every other colour could only have a chrome bumper.