Product Description
Nick Williams 103MM Drive-By-Wire Throttle Body – SD103
103mm CNC Billet DBW Throttle Body | High Airflow Upgrade for LS Engines
The Nick Williams SD103 103mm Drive-By-Wire Throttle Body is the ultimate airflow upgrade for LS performance builds pushing serious horsepower. Precision CNC-machined from billet aluminum, this redesigned 103mm throttle body replaces the older 102mm boosted and non-boosted versions, delivering increased airflow capacity and improved throttle response. Built for high-performance LS applications, this unit is ideal for naturally aspirated and forced induction builds where maximum airflow is critical. Designed to work with late model 6-pin connectors, this throttle body integrates seamlessly with modern LS wiring systems and comes fully assembled with mounting hardware included.
Key Features & Benefits
- Massive 103mm Throttle Blade – Provides significantly increased airflow over factory throttle bodies, making it ideal for high horsepower, boosted, and aggressive camshaft LS builds.
- CNC Billet Aluminum Construction – Precision machined from high-quality billet aluminum for maximum durability, strength, and long-term performance under extreme conditions.
- Updated SD103 Design – Replaces previous 102mm versions with improved airflow characteristics and refined design for better overall performance.
- Drive-By-Wire Compatibility – Equipped with a late model 6-pin connector for seamless integration with modern LS drive-by-wire systems and wiring harnesses.
- Complete Ready-to-Install Assembly – Comes fully assembled with included mounting hardware for a straightforward installation process.
Fitment
- Fits Gen 3 & Gen 4 LS Engines
- 4.8L, 5.3L, 5.7L, 6.0L, 6.2L
Engine Compatibility
- LS1, LS2, LS3, LS6, LS7, LS9, L99, LSA
- L92, L9H, L94, L76, L77, LY6, L96
- LFA, LZ1, LY5, LMG, LMF, LH6, LC9, LY2, L20
- LQ4, LQ9, LR4, LM7, L59, LS4
Important Notes
- Requires an aftermarket intake manifold designed for 103mm throttle body fitment.
- Designed for high-performance applications where increased airflow demand exceeds factory throttle body capabilities.
