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Features, Description, Q&A
High-Performance Engine Management. The Holley EFI GM LS1/LS6 HP EFI ECU and Harness Kit is designed to deliver precise fuel and ignition control tailored for GM LS engines. It optimizes engine performance from stock to highly modified setups, including boost, nitrous oxide, or water/methanol injection, simplifying tuning by eliminating the need to reflash factory ECUs during upgrades.
Construction and Appearance. This system features a fully potted ECU for maximum durability, resistant to harsh engine environments, suitable for mounting in engine compartments or inside the vehicle. It includes sealed automotive and marine-grade connectors with Jetronic/Minitimer (Bosch type) injector harness connectors and comes with an NTK wideband oxygen sensor engineered for demanding applications.
Installation. Installation is straightforward with plug-and-play control designed specifically for GM LS1 and LS6 engines. The harness connects directly to factory sensors with minimal wiring required, making it accessible for both advanced enthusiasts and professional installers.
Application. This kit fits GM LS engines, particularly LS1 and LS6 models equipped with factory GM coils and 24 tooth crank sensors. It supports a wide range of LS engine sizes that meet this configuration, offering broad compatibility within the LS engine family.
Holley EFI 550-602N
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