If you don't like the inferno set (it probably isn't bad, maybe not suited to your style of driving) best bet is to go onto a server running this combo and ask one of the fast guys for a set.
Ask them when they have finished racing and not while they are on track. If I wanted to ponse a set I would let a fast guy past under a blue flag by getting right out of his way. Then he'd be more likely to give me his set after the race.