heavy knock

[silverbugeye02]

ive got an 02 wrx that gets severe knock and falls on its face around 4500RPM. found cheap amazon plugs in car and installed new step 1 colder NGKS. car also came with a stage 2 clutch installed im unsure of what brand. im pretty stumped and not reallly sure what to do to get my car to run correctly. here is a datalog from highway driving. https://datazap.me/u/galaxyspinz/log-17 ... &data=2-11