Poll: need for torque boxes, considering amount of horsepower
even slant 6 cars in SA and Austrlia got them....
more to do with the use of the car than power or torque .
if you drive like the dukes of hazzard or chase mustangs round San Fancisco
anywhere where there are corners and uneven surfaces
if you park in an uneven field at the county fair.... and suddenly can't open your door..... or you can, but it just bounces off the striker when you try to shut it....
torque boxes and chassis connectors....
if you have both....innaproriate jacking of the car practially lifts 3 wheels not 1
an improvment you can feel from the day its done
Dave