These ACCEL carbon and graphite core wire sets virtually eliminate RFI noise, while providing maximum conductivity for ultimate performance in any race or street application. Double silicon insulation eliminates leakage and misfire. Product Features:500 Ohms/ft. Of Resistance550 F Rated Silicone JacketStainless Steel Plug TerminalsCustom-fit Universal And Import CoveragePre And Post HEI Vehicles