K-Tuned Throttle Body Velocity Coupler (Civic Si to 3.5") - KTD-TVC-6035 9.5" Width An IGUS Polymer bearing and

An IGUS Polymer bearing and aluminum carrier which work in conjunction to eliminate slop in the factory shifter

Largest Gains* +17

NS3-XTG4 kit features an Xtreme pressure plate for the most demanding driver

the 4152 is fully fuel/oil compatible

Perfect for diesels or any high boost applications

K-Tuned Throttle Body Velocity Coupler (Civic Si to 3.5") - KTD-TVC-6035 9.5" Width An IGUS Polymer bearing andThe K Tuned velocity coupler is made from reinforced 4 ply silicone. This unique part completely removes the step commonly found at the throttle body opening, which straightens and accelerates the intake airflow and in turn helps the engine breathe easier. Intake system design and overall airflow into an engine can be critical to making maximum power. The coupler has been engineered to improve an engines volumetric efficiency similar to the way a