When your LS build is moving serious air, the throttle body should not be the restriction. The Granatelli 112mm billet Drive-By-Wire throttle body is built for high-horsepower LS and LSX combinations that demand massive airflow, strong electronic throttle control and dependable performance under boost.
The Granatelli GMTBLS112B 112mm Drive-By-Wire Throttle Body features a massive 112mm bore and precision CNC-machined 6061-T6 billet aluminum construction. Finished in black anodizing, it delivers the airflow capacity and durability required for aggressive naturally aspirated and forced-induction GM LS applications.
A reinforced throttle blade assembly and powerful electronic motor are engineered to remain stable under high airflow and boost pressure, making the GMTBLS112B an excellent choice for large-displacement LS engines, supercharged combinations, turbo builds and other applications where a factory-size throttle body can become a restriction.
112MM OF SERIOUS LS AIRFLOW.
ENGINEERED FOR 25+ PSI BOOST
Built for combinations where airflow demand goes far beyond stock, the Granatelli 112mm DBW throttle body combines a massive bore with a reinforced motor and blade assembly designed for extreme-performance LS applications.
Key Features
- Massive 112mm throttle bore for increased airflow capacity
- Designed for high-performance GM LS & LSX applications
- Drive-By-Wire electronic throttle control
- Uses a late-model GM 6-pin DBW connector
- Precision CNC-machined from 6061-T6 billet aluminum
- Black anodized finish for durability and a premium appearance
- Reinforced motor and throttle-blade assembly
- Engineered to support 25+ psi boost
- High-torque electronic motor helps prevent throttle-blade slamming or unwanted closure under boost
- Excellent for naturally aspirated and forced-induction combinations
- Ideal for TVS, Whipple, Roots-style supercharger and turbo applications
- Can be used with compatible factory or aftermarket intake manifolds
- No need to transfer electronics from the original throttle body
- Designed to improve airflow volume and throttle response
- Made in the USA
Performance Application: The GMTBLS112B is designed for serious performance combinations where increased airflow is required. A tune may be required to optimize throttle operation and engine performance, especially on modified or forced-induction applications.
Massive 112mm Airflow Capacity
A high-output LS engine can only make power if it can breathe. The 112mm throttle opening dramatically increases available inlet area compared with smaller factory-style throttle bodies, helping reduce airflow restriction at higher RPM and on engines with substantial airflow demand.
Built for High-Boost Applications
Forced-induction systems place additional load on an electronic throttle blade and motor. Granatelli equips the GMTBLS112B with a reinforced blade assembly and high-torque electronic motor engineered to handle upwards of 25 psi of boost while resisting unwanted throttle closure or blade movement under load.
Precision 6061-T6 Billet Construction
Each throttle body is precision machined from 6061-T6 billet aluminum for strength, dimensional accuracy and durability. The black anodized finish adds corrosion resistance while giving the throttle body a clean, aggressive appearance that complements high-end engine builds.
Complete Drive-By-Wire Assembly
Unlike throttle bodies that require transferring electronics from the factory unit, the Granatelli 112mm DBW throttle body is supplied as a complete electronic assembly. It uses a late-model GM 6-pin connector for compatible applications, simplifying installation on properly matched LS and LSX combinations.
Compatible GM LS & LSX Applications
Designed for high-performance GM LS and LSX engines using a compatible 6-pin Drive-By-Wire throttle-control system. Common applications include:
Popular Performance Applications
| Application | Notes |
|---|---|
| LS3 / L99 | Excellent for high-airflow naturally aspirated and boosted combinations |
| LSA | Excellent for TVS, Roots-style and other supercharged applications |
| LS9 | Suitable for compatible high-output supercharged builds with the correct intake setup |
| LSX | Ideal for large-displacement and high-horsepower crate or custom engine combinations |
| Turbo LS | Reinforced electronic throttle assembly designed for high-boost airflow demands |
Important Fitment Notice: This throttle body is designed for compatible GM LS and LSX applications using a late-model GM 6-pin Drive-By-Wire connector. Verify your intake-manifold bolt pattern, throttle opening, electrical connector and available clearance before ordering. Some intake manifolds may require an adapter.
Tuning Notice: A tune may be required for proper operation and optimum performance, particularly on highly modified, forced-induction or custom engine combinations.
Trailblazer SS: Granatelli recommends calling before ordering for Trailblazer SS applications to confirm calibration compatibility.