They work nearly as well as stock Nissan wires. I had them on my turbo SE-R turned race car. I've watched several big turbo SR20s with MSDs run them, misfire, then run fine with stock wires. Tom --- Qualudia101@aol.com wrote: > Anyone used these..........a non Nissan enthusiast > tells me they make a BIG > difference. > Any conflict with the stock electronics?