new way of using hack?

[AA™| exzibit]

Hi guys. I need second opinion on this two replays. Just look at Nurlanaze. He is not doing ultra high speed but his rpm is jumping all the time. And he is not only one i recently spotted with that kind of behavior. i banned him for 999 days but i am not 100% sure he is using hack. My 6th sense tell me it's hack but who knows, maybe i'm wrong. please help.
http://www9.zippyshare.com/v/81416132/file.html
http://www2.zippyshare.com/v/13020128/file.html


edit: after medd's report I changed first link

[meddc]

That driver only appears in one of your replays, but he's definitely using speed hack

[delta s4]

Speed and crash hack

[AA™| exzibit]

Thanks for your help guys