hey mate, details about what the loom does here, it came on my car from japan.
http://www.japaneseimportspares.com.au/yashiofactory/
S15 Sr20 Yashio factory Okachan coil pack loom
Are youhaving trouble with spark on your Sr20,? you think its your coil packs butchanged them and nothing happens ?Well thiscould be your answer, Yashio factoryOkachan coil pack loom ! get the world in your hand !!This loomhas gold contacts throughout with direct earthing and 12 volt supply frombattery 3 times thicker than stock, all contacts are Nano carbon coated. This Yashioloom has only a .2 volt drop across its length compared to standard loom with a.6 volt drop. This equals a much stronger spark and solves your misfiringproblems !