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Nick Williams made 103mm throttle body for Gen 5 LT1 LT4 vehicles with modified inlet. They use a 6-pin late model connector that works with late model wiring harnesses. Tuning is required for installation; and the Nick Williams Performance drive-by-wire throttle bodies come complete with stepper motor and electronics installed—no need to disassemble your factory throttle body. Comes in polished finish.
This throttle body is not a direct fit for OEM intake manifolds, but can be used with:-LT1 MSD Atomic intake manifold-Eaton 1740 LT4 Supercharger with ported inlet - We also offer this upon request-2.9L Whipple-2.65L and 2.3L Magnuson or Edelbrock Superchargers-Procharger LT1 or LT4 Manifold-LME Manifold-Frankenstein Manifold-GT1Pro Manifold