Ecotec 4.3 Throttle Body Adapter Kit – Billet Upgrade for Larger Throttle Body Swaps

Maximize airflow and throttle response with the BK Racing Ecotec 4.3 Throttle Body Adapter Kit — the best adapter for installing a 4.3L V6 throttle body on GM Ecotec engines, enabling seamless use of the larger ~70-73mm bore 4.3 throttle body on stock Ecotec intake manifolds. This precision billet adapter unlocks significant intake improvements for naturally aspirated, supercharged, or turbo builds — perfect for Cobalt, HHR, Cavalier, Ion, Solstice, and custom Ecotec projects chasing more top-end power and quicker spool.

CNC-machined for exact port matching and leak-free sealing, this kit includes the adapter plate and 4 machine screws for direct mounting to the Ecotec manifold — trusted for reliable performance gains without complex modifications.

Key Features:

• High-quality billet construction for durability and precise fit
• Optimized port transition for smooth airflow from larger 4.3 throttle body
• Includes mounting hardware (4 machine screws) for complete installation
• Direct bolt-on to stock Ecotec intake manifolds

Performance Benefits:

• Increases intake volume for better high-RPM breathing and horsepower
• Improves throttle response and turbo spool in boosted setups
• Supports aggressive tunes and larger throttle bodies for real power gains
• Essential upgrade for custom intakes or 4.3 TB swaps on 2.0L/2.2L/2.4L Ecotecs

Compatibility & Fitment:

• GM Ecotec engines (2.0L LSJ/LNF, 2.2L L61/LAP, 2.4L LE5/LE9/LAT)
• Adapts GM 4.3L V6 throttle body (70-73mm bore) to Ecotec intake manifold
• Chevrolet Cobalt/HHR/Malibu, Pontiac G5/G6/Solstice, Saturn Ion/Sky/Vue/Aura, and custom swaps
• Direct fit on most Ecotec manifolds — minor clearance adjustments may be needed on some applications (e.g., Cavalier tunnel)

Installation Note: Bolt-on with included hardware. ECU tuning recommended for drive-by-wire compatibility and optimal results. Off-road and competition use only.

Proudly engineered by BK Racing Inc. — Ecotec specialists delivering precision intake solutions for maximum airflow and championship performance.

Breathe easier and gain power — upgrade to the BK Racing Ecotec 4.3 Throttle Body Adapter Kit today!