As previously mentioned the 9748RR kit fits the C5 5.7L LS1. round like OEM, but heat shield fits well. I consider this an upgrade as the angled body is easier to remove without always pulling the wire and grommet through and then out of the OEM straight body. AC Delco 7mm printed on wire - looks well made - no problem. The measured resistance on all 8 wires was 820 ohms + - 20 ohms. (My OEM kit showed 4k ohms)
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