been a long time since ive been here! hope this helps some one . I have mounted my MSD box on the batt. side of the car where my washer fluid tank used to be. this helped cut a little weight (about 6lbs when full) and gave a stealthy place to hide it! it is mounted verticle as far over as possible.

 

I put mine in the rear wheel well where it is cool and dry...

 

 

mine is under pas seat, very clean!!