Originally Posted by
angrymelon
I haven't noticed any excessive flex. Once the battery strap is screwed down it makes the top of the car fairly rigid. The only noticeable flex for me is the slop at the battery strap hinge. However, if you release the battery hold down, its SUPER flexy.
You can replace the pin for the strap with a long screw and a nut to eliminate that bit of slop.