I have an 03' evo... I had clutch slipping problems and immediately changed the clutch line to the "Russell Stainless Clutch Line" and removed the restricter out of the slave cylinder. Now that didn't fix the problem. I had an Exedy carbon single plate clutch and flywheel installed and now im having some serious rattling problems! im pretty sure its a heat shield though. But my main concern now is that the clutch is starting to slip again... slightly at high rpms... now when i start to boost, the car will hesitate. Some say its my BOV some say its my piping! Is this a clutch installation, Vacuum leak, BOV, or None of the above? Whats goin on!!!!!!