Injector Dynamics provide the absolute best fuel injectors available, and have quickly become the standard for tuners and car builders worldwide. Injector Dynamics fuel injectors are the result of batch testing large quantities of specially modified fuel injectors, and then carefully matching them into sets based on their dynamic flow across the pulsewidth range. The result is vastly superior cylinder to cylinder consistency, even at very low pulsewidths.In addition to receiving tightly matched injectors, you will be provided with dead time compensation values across the entire pressure and voltage range of the injector. This data will insure that the compensations in your ECU work properly, and your air fuel ratios will remain consistent as atmospheric or voltage conditions change.Included with this kit is the clips and pins that fit the Injector Dynamics Injectors. You can either re-pin your factory harness or purchase the optional plug and play adapters.This kit comes with billet fuel rails to convert your side feed equipped car to top feed. The fuel rails have -6an fittings on each end to leave your plumbing options open.