Overview Reviews Product Description 558-309 Holley EFI Holley DIS Coil to Holley LSx Harness Adapter This kit contains plug-and-play harnesses to connect Holley 24x or 58x main harness to Holley waste-fire DIS coils. Not compatible with 556-112 coil near plug smart coils (see 558-312 for 556-112 smart coil applications ) Product Videos Custom Field Product Reviews Write a Review Write a Review × 558-309 Holley EFI Holley DIS Coil to Holley LSx Harness Adapter Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *