Description
The Nick Williams 103 mm throttle body pushes your LS platform into a higher flow regime, letting your engine breathe more freely under heavy load. Built from solid billet aluminum and equipped with OEM-style electronics, this unit blends performance hardware with seamless integration. Whether you’re chasing high-RPM power or smoother throttle dynamics, this upgrade unlocks new headroom for serious builds.
Fitment Notes
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Made for GM LS engines (LS1, LS2, LS3, LS7, LS9, LSA) in performance builds
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Requires aftermarket intake manifold sized to match the 103 mm diameter
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Not compatible with factory LS intakes without modification
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Tuning / engine calibration required for full functionality
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Uses a 6-pin connector for late-model GM drive-by-wire wiring harnesses
Included
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CNC-machined 103 mm throttle body (natural / raw finish)
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Drive-by-wire electronics and stepper motor pre-installed
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Mounting bolts and hardware
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Gasket or sealing O-ring
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Installation instructions
Product Specs
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Blade / venturi diameter: 103 mm
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Material: Billet aluminum construction
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Connector: 6-pin GM electronic interface
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Finish: Raw / natural (uncoated)
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Intake manifold requirement: Must accept 103 mm throttle blade
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Requires tuning to enable full control and operation
Product Features
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Maximized airflow potential for high-horsepower builds
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Turnkey electronic integration — stepper motor and electronics installed
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Billet construction ensures structural rigidity at high RPM
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Natural finish option allows custom finishing or matching your build
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Future-proof upgrade — supports further modifications without needing another throttle body
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