Check the listing for details. Power House Adjustable Ignition Module For 70-99 Shovelhead Evolution 17579. Condition: New. Listed at 299.70 USD. 70-99 Harley Shovelhead Evolution Powerhouse Adjustable Ignition Module 17579 Fully adjustableUse with kick or electric startCan be used as dual fire or single fireYour choice of single spark or multi-spark mode10 different advance curves*Note: Will not work on bike equipped with lean angle switch (i.e. Sportster models 1998/2003) Not legal for sale or use in California, or on any pollution controlled vehiclesPOWER HOUSE PLUS* Ignition Module OnlyFits single cam Big Twin 1970/1999 (except EFI), Sportster 1971/2003 & 1200S 1996/2003By: DAYTONA TWIN TEC LLC DISCLAIMER: By buying this item you are fully acknowledging that you've done your research, checked part numbers, and verified that this part will fit your motorcycle, For more information you can easily look up any new part directly from any manufacturers part numbers and all the part numbers we have been able to cross reference and add to the listing. We do not offer returns