Specific red oversized Opel Speedster 2200 Turbo spark plug cables with very high conductivity with the highest thickness of 8.8mm for the best conductivity of the high voltage current to the spark plugs.
High conductivity red spark plug cables in pure silicone also including specific cable for the "old" Fiat 500 with removal of the distributor and installation of the Fiat Punto coil.
Fiat 131 racing spark plug cables with high distributor. They are high conductivity spark plug cables with 8.8mm thickness of pure silicone, only less than 100 ohm per meter specific for this engine