https://www.stangnet.com/mustang-forums/threads/lmr-2018-discount-code.901742/ has the discount code for late model restoration
UPR is not listed as a vendor sponsor but you can always beg for a discount, maybe a sob story involving a cat or other animal will help.
'My cat ate my fan belt and I need a discount on that blower because of the vet bills'
Get on their mailing list, thats where you get discounts and promotions in your inbox, on your phone or they can call your mom to remind you to spend money
Stangnet members get a discount, check the vendor forum for the code.
Once in a while they do have a 10% off code. Get on their mailing list. Usually it's major holidays like 4th of July. Put a wishlist together and order when the codes drop. I have my max motorsports k member waiting for the next 10% code