Circle d Specialties

Our mission is to make exceptional torque converters while providing unparalleled knowledge and outstanding customer service. We are driven to continually improve and raise the bar with our products, relentlessly pursuing perfection. We are a team, we are family, we are Circle D Specialties. Our performance moves us.


Our state of the art torque converter technology & manufacturing facility allows us to take purpose built drag racing torque converters to previously unheard of levels of performance.This technology trickles down into our products for the street car enthusiast as well. With the powerful combination of our CFD modeling software, SolidWorks design, 5-axis CNC-machining, & comprehensive data analysis (all done right here in-house at our Houston, Texas facility) we have the ability to custom tailor & tune torque converters to the highest degree for each unique combination.