Firstly, YES I'VE SEARCHED!!!!!!! - results arent really helping me!
I've got a S2 RB25DET with approx 40k on the clock. Running stock boost, 3" exhaust, near new Yellow Jacket coil packs, BCPR6ES plugs gapped to 0.8
Was running fine until yesterday around 4500~5000 rpm its hesitant with a noticeable misfire almost all the way up to redline. Sometimes it does it, sometimes not.
I put in new spark plugs, checked/changed AFM, checked all vac lines for leaks etc etc and couldnt find anything. All wiring looks ok too.
Any suggestions???