NO Ballast coil not used on RS Turbo series 1 or 2...!!!...will effect the output of the coil you have if its being used, with eventual damage to the ECU..... as the wiring loom is not set - up for a ballst coil...but with my TEST will make a ballast coil give "HT SPARK"..but just as a check as the ECU amplifier within wont like it...so as a test...OK only..the proper coil was a Bosch unit with a amps draw with the coil "neg " to ground was 8/9 amps as a test only. Peter