it's my bro's GS-R i took it to see my sis.. he has a stage 4 clutch, it made chatter in first gear a little and would make a whiny noise.. well i was driving on the highway shifting from third to fourth and it made a pop and then revved high as hell.. car idles high and clutch makes squeak in every gear and is hard to engage. gas pedal makes arough sound also? if someone could help me diagnose these problems and prices would be nice too. you drive it, you pay for it right?