I actually had some Nology Hotwires on my 240SX. I was happy with them, but didn't think that they had good bang for the buck value. If you are hell bent on upgrading your wires though, these are the ones to go with. They are very high quality, and even have a grounding strap for low interference. I think if they were grouped with a intake upgrade, ECU upgrade, and exhaust upgrade that they might be worth it.