5.3L engines will need a 6.2-liter throttle body, such as the Lingenfelter Performance Engineering Ported LT5 95 mm Throttle Body.
Magnuson GM Truck Magnum DI 6.2L 2019+ Intercooled Supercharger System REQUIRES that the ECM is unlocked. To do this the unit must be shipped for this. This service takes an estimated one to two weeks to be completed after the ECM is received.
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