Overview Reviews Product Description 558-425 Holley EFI CAN EXTENSION HARNESS, 8FT Can Extension Harness (for Racepak and other external CAN drives) Product Videos Custom Field Product Reviews Write a Review Write a Review × 558-425 Holley EFI CAN EXTENSION HARNESS, 8FT Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *