Granatelli Motor Sports GMTBLS3B 103mm Drive-By-Wire Throttle Body Black LS3 LSA LSX

The Granatelli Motor Sports GMTBLS3B is a high-performance 103mm drive-by-wire throttle body designed specifically for GM LSX engine platforms. CNC-machined from premium 6061-T6 billet aluminum with a sleek black anodized finish, this throttle body dramatically increases airflow over stock units to deliver enhanced throttle response and improved engine performance across the entire RPM range.

Key Features:

• 103mm bore diameter significantly outflows factory throttle bodies
• CNC-precision machined from 6061-T6 billet aluminum for exceptional strength and durability
• Black anodized finish for corrosion resistance and a performance appearance
• Boost-ready design handles up to 25 lbs of boost in draw-through or blow-through configurations
• Powerful electric motor with unique throttle blade design prevents blade closure under high boost
• Direct bolt-on replacement using late model GM 6-pin connector—no parts transfer required
• Compatible with factory or aftermarket intake manifolds
• Includes gaskets and mounting hardware for complete installation

Application: Designed for LSX family engines including LS1, LS2, LS3, LS6, LS7, LS9, LSA, LSX, LQ4, and LQ9. Ideal for naturally aspirated and forced induction applications, particularly with TVS, Whipple, or Roots-style superchargers. Professional tuning may be required for optimal performance. Trailblazer SS applications require calibration—please verify before ordering.

Note: This product is not CARB-compliant and cannot be shipped to California. Requires intake manifold with 103mm or larger port opening.