welcome sorry 4 your problems you got screwed by the dealer litterly robbed I purchased a 2018 with 22 miles for 35.000 and they hauled it to me for 1500.00 from the west coast to the east coast
welcome 2 the group u can put a straight exh on these diesels and they nay b little louder bur not enough to warrant the price of the pipes plus u will need a tune