Modular design allows flexible selection for different system types
Intended as direct replacement parts for EFI and fuel system conversions
Supports both classic and modern engine swaps
Enables hands-on learning and DIY tuning projects
Individual harness pieces intended as replacement parts. First, select your system type, then select the harness piece from the list of available harnesses.
I purchased a new crank sensor sub harness after my original one was damaged after touching the exhaust. It was somewhat of an ordeal finding the problem, but tech support suggested I check that harness for damage. I was told it was a common, known issue that they were looking at to try and fix. Instead of sending me a replacement for a part they knew was a problem, I had to purchase a replacement. I ended up adding further heat protection in the area of concern on my own and installed the new harness. It is running again, which is good, but I'm a little disappointed that Aces would continue to sell a part with a known problem without upgrading it. An inexpensive silicone heat sleeve would go a long way to eliminating this issue.
E
Eric · September 19, 2026
Plugs right in, good quality, everything looks nice and tidy