Discounts available in this configuration are only pertaining to the purchase with a efi controller base price of $200 is for a tuner with a $10 discount initially. Other discounts are reflected in each price difference when added. Unfortuanly our shopping cart doesn't have a ton of logic to make it totally A LA CART. If you only select efi controller an no to rest the shipping rate will be very high and probably cheaper to get it on its own item page.
Specific item information can be found on each item below in related items this is used to buy as a package and receive a discount.