Proflow's billet throttle bodies are designed with larger openings (92mm or 102mm) to improve throttle response and provide maximum airflow. They are precision CNC-machined from billet aluminium and are available in your choice of natural or black anodised finishes. Bolt on one of our Proflow billet aluminium throttle bodies to feed your LS engine the air it needs--and unleash its hidden horsepower!