07 hemi gas saving help.
#1
07 hemi gas saving help.
looking for a way to get some better gas milage. its a 07 crew cab 2wd auto with the 20"s. all i have done to it was a flowmaster. I was thinking on doing a K&N stage 2 or 3 set up. also was wondering on the hypertech max E-CON. has anyone here used it? what kind of diffrence did it make?