LSx Standalone ECU W/ Plug & Play Engine Wiring Harness - MS3 Gold Box Chevrolet-Camaro-1987 The rule of thumb is

The rule of thumb is the larger the motor

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LSx Standalone ECU W/ Plug & Play Engine Wiring Harness - MS3 Gold Box Chevrolet-Camaro-1987 The rule of thumb isProud to now offer a complete plug & play solution for your LSx swapped vehicle. This is a hassle free way to get your newly swapped engine up and running with our complete package. Whether you are working on a Gen 3 or Gen 4 engine, we have the 24x and 58x ECU's in stock to cover all the applications. This is an extremely powerful box to cover virtually any building from a basic naturally aspirated 5. 3 swap to an all out LSX turbocharged 1000+ HP