ok i got a dealer willing to reflash my tune for me but i need to know what to tell them when i go in thay know its not for a supercharger but i know the guy so hes going to over look that

in the gm build book it says to give the dealer this part number #12593900

but i read that the reflash part number for a manual car is #12590820

so my ? is what part # do i need to give them and tell them i know thay need my vin number and a part number but im not sure witch one to give them

just tell them that the need to call TAC and request a new vci number for the reflash, really easy
you dont need number

i went to get my reflash yeasterday but the dealer and i had no luck being the tech line was closed for xmass so i have to go back he ask me to try to find a part number to speed it up seens he gave me a really low price and is breaking the rulls to help me thats why i ask

i went in and said hears my keys tune it for the s/c....came back an hour later.