As the title says, I can install single and twin turbos but when select the supercharger it doesnt install it. This bug is new as I did have it installed for my S class tune but when I went to make an A class tune for it I was unable to install it.
Have you tried returning to stock or default before trying to install it
Yea, the only thing I havent tried is buying another car to see if mine is just bugged, once upon a time we could sell parts. Wish I could do that now to see if it would fix it as it would be much cheaper than buying another car.
There has been a problem for some years when you download a tune and then remove it. It only affects reinstalling the FI as far as I can tell. If you purchase a stock car it’ll work fine.

There has been a problem for some years when you download a tune and then remove it. It only affects reinstalling the FI as far as I can tell. If you purchase a stock car it’ll work fine.
Yea that fixed it, cant help but feel like this is a “feature” and not a bug.
Thanks