**This modification requires a tune for proper control.** The WSI 68mm ported throttle body offers a 20% increase in area at the throttle plate, and overall an even larger increase as we have greatly modified and smoothed the airpath. As we are always looking for improvements, we noticed the throttle body seemed to be very restrictive. We 3D scanned the factory throttle body, digitized the OEM air path, went to work with MasterCam, found the largest possible diameter throttle plate that will fit, and went to work with our 5-Axis Centroid CNC to port the complex shape into the throttle body. It is much more than a simple bore, we focused on keeping an OEM like shape to control airflow past the throttle plate with throttle position to make sure that it will have an OEM like feel in all modes and conditions, while still having a huge increase in airflow, throttle response, and power.
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