Aem Ems

Does the AEM EMS really make a big difference ,what does it do and how much HP can i get of of it???

Does the AEM EMS really make a big difference ,what does it do and how much HP can i get of of it???


Unless you have extensive mods then you will gain just about nothing from it.

EMS = Engine management system.

heres what it does.
http://trucks.aempower.com/product_electronics.asp

there are many other EMS out there.

if you dont know what it is you dont need it