Hollley Efi Blog
The Most Patriotic Turbo LS Mustang at LS Fest East 2019!| 11/13/2019
James Rowlett is deep in the turbo LS game at LS Fest East! His Fox Body Mustang known as "Boost of Burden" is running a Texas Speed 427 on Holley EFI and was able to win the final race in the Tv Series "Fastest Cars of the Dirty South"
Pro Dash firmware update adds additional inputs to Holley ECU's!| 11/07/2019
The latest Pro Dash firmware update (5.0 Build 49) uses a single firmware version for both the 6.86” (PN 553-112) and 12.3” (PN 553-111) Pro Dashes. It gives Holley EFI users the ability to use the first thirteen dash inputs (IO 1 - IO 13) actively within their HP or Dominator ECU via CANbus. Users must upgrade to V5 Build 130 or greater to take advantage of this awesome new feature. Click here to learn more!