ok when im in first its fine, i hit 2nd and accelerate but it revs up about 1k rpms then drops 500rpms then catchs and goes back up. the same is for every gear after that. its an 04 5spd wrx if that helps. :confused: ive been told it might might be the clutch slipping but anyone i ask isnt quite sure so if youve been through this problem or know about it id love the help.