Assembled with parts consisting of original GM Delphi connectors, TPA's and terminals to ensure the best fit with your original harness, combined with a custom spec'ed flasher to deliver the optimum flashes per minute rate for your C5 Corvette. This harness uses TPA (Terminal Position Assurance) equipped connectors just like the original GM Delphi connectors to ensure that each terminal has a "locked in", assured connection. The TPAs can only be inserted if each terminal is completely seated in the connector housing. This will make sure that the terminals will not back out of the housing due to natural vibrations. *** Does not work with the Euro Taillight Conversion ***