Is no need to go with the h5 diehard makes a h4 hybrid battery that works perfec, they h5 will fit but the plastic needs to ne remove firsts for intall
I just did the install on m truck and the instructions for the wire are not for all trim levels there is some helpful how to on the Amazon reviews, over all very please with them
I have a fleet of 10 hybrids after the recall they all increase on the mpg by about 50 extra miles per tank full, but that started after the 3th tank full I think the computer needs to recalibrate itself to your driving habits again