The K-Tuned throttle body velocity coupler is a game-changer for K20A, K20A2, K20A3, and K20Z1 throttle bodies. Crafted from reinforced 4-ply silicone, this unique part eliminates the step at the throttle body opening. By straightening and accelerating the intake airflow, it helps your engine breathe easier and boosts performance. Intake system design and airflow are crucial for maximum power. This coupler is engineered to enhance an engine's volumetric efficiency, similar to a velocity stack. Regular silicone intake couplers create a step that slows airflow and causes turbulence. But with the K-Tuned coupler, air turbulence is gone, and the taper increases intake air velocity. It fits the most common 3” intakes on the market. One end is custom-fitted to the OEM 62.5mm K-series throttle body (cable versions), and the other end matches a 3” diameter intake pipe.

Using the K-Tuned throttle body velocity coupler is straightforward. First, make sure your engine is turned off and cooled down. Remove the existing intake coupler from your K20A, K20A2, K20A3, or K20Z1 throttle body. Then, install the K-Tuned coupler. Fit the custom end to the OEM 62.5mm K-series throttle body (cable versions) and connect the other end to the 3” diameter intake pipe. Tighten the clamps securely. When it comes to maintenance, regularly check the coupler for any signs of wear or damage. If you notice any cracks or leaks, replace the coupler immediately. Avoid using harsh chemicals on the coupler as it may damage the silicone. Keep it clean by wiping it with a soft, damp cloth. And always follow the manufacturer's instructions for best results.