so this isnt really a great question but its just out of curiosity, i was told my car has a ms4 cam, iv been watchin some videos of cars with ms4 cams (untuned) and they dont sound like my car, could there be a big difference between bein tuned and untuned

thanks alot

 

an untuned cam car could hav a rough idle or not run that great. it depends on the cam but you should be able to hear a similiarity