I will say my Firecore wires were sent to me and all I told them was its a 440. They came with 45 degree angle on all the wires and I must say the lenth was just right and they fit great with my TTI headers. I mean they really fit just right and I do like them. I have used Taylor and Moroso wires also which fit ok but I feel the Firecore are a step better IMO. Ron