• Upper Left - Finished product showing improvements to throttle shaft. Venturi and secondary Venturi.
• Upper Right - Throttle plate screws. Left is the flush counter sunk screw we install. Right is the stock screw head 2mm x 6mm, protruding into the airflow.
• Lower Right - Throttle plate open showing the (invisible) flush mounted countersunk we installed. The original screw head on the right side protrudes 2x6mm into the airflow. The excess threaded screw protrudes 3x3mm into the airstream.

Lower Left - Before and after of the rough secondary Venturi casting. The aerodynamic significance is obvious. The finished piece still needs to be media blasted for surface finish.