Code has change,, go here.. for now..
http://www.autozone.com/landing/pag...151108_20151114_pencil_hp_top_choice_troops20
The 20% is periodic,, You go to the Autozone homepage,, and check the "banner" at the top of page for sale and nec. code..
Jegs and Summit have been known to match that price..
cheers
