Recently changed the master slave cylinder and slave cylinder. Filled the clutch fluid with DOT 3 Brake Fluid. Also changed the air box from a mishimoto cold air intake, to a smaller intake box, that had a drop in filter. In 2nd from my knowledge, when I accelerate from 2-3,000rpms then let off the gas, the car kinda of laughs back and forward and rpms are jumpy. When started with the clutch depressed it the rpms go up a tad to 2,000, then down to 750 when heated. When revved in neutral to about 4,000 rpms, the rpms drop to almost 0, then it dies off. In the road same deal when going from a gear to neutral, and there was some revs involved, dies right off. Air box related? Coolant level, and oil pressure are seated at normal.

Stage 3 clutch, installed 10,000 miles ago, currently at 72,000 miles. Oil change about 5,000 ago.

Week ago, I was in second, revving slowly up while moving, then slowly dumped the clutch, car slugged ish, i stopped, and it wouldn’t go into gear, but there was pressure on the clutch. A few days later it seemed to go into gear randomly without force, when moving it sounded somewhat like stuff was screeching, didn’t drive it after that. Then this incident happened after changing those 3 items. Other aftermarket is a cat back exhaust about it.

Not enough clutch fluid? Didn’t drive it much just around the block.