Obtain Crankshaft in Need for Speed No Limits Game IOS Iphone

[Lucky202013]

Hi, Can anyone tell me in Need for Speed No Limits Mobile Game for Iphone how can obtain upgrade parts like Crankshaft or Injector for Upgrade Porsche 911 Carrera?

What is the next steps because i am blocked over few weeks and i don't know how can upgrade the cars with these special parts?

What is the procedure? Next Steps?

Thanks,

Lucian