i got it from sunway, and i honestly forgot the shop's name already, cause there's just so many of em. We sourced it from there and installed it at my regular workshop.
I'm selling it because i had a hi/low & hard/soft set that was sent for service, so i got this set and used it for 4 months. My idea is that to buy it first and resell it later because i was desperate for a set of suspension at that time.
there are a few solutions for RB coilpacks misfiring problem,
1. splitfire coilpack
2. buy new standard coilpack from nissan original parts
3. buy kedai potong coilpack
4. run coils from other cars (example - mitsu...