#MajsterUopata :
Maybe contact with 9kRPM? He's a fckin God in making engine sounds 8)
It would make thing easier sure, but the engine is nowhere finished and the amount of sounds he would have to do would be insane. We planned to do the most famous japanese tuner parts for maximum realism and sourcing the sounds for them is going to be a real bitch, I don't know if he wants to do such laborious job of scripting which sound is which and what variables has to apply to in order to get the right sound.
Added 1 minute later:
And even then, we don't know if he will accept. He may or may not accept.