Since 1971, we’ve used plastic injection molding to help clients transform unique designs into finished products, innovating within the sports equipment, electronics, medical, communications, and consumer products industries. We are proud to share in the success of our client brands as your innovation is truly our passion.

Features all ball bearing support of the longitudinal throttle shafts, including the bearing between each set of butterflies. This gives super smooth throttle action, allowing better control of the car on the track.   [ To Learn More – Click Here ]

Do you need design-for-manufacturing (DFM) assistance? Or, are you ready for production? We have a full suite of services to offer and a lifetime mold guarantee.

This is an excellent option on a new manifold to protect your investment !    PLUS….can be done to most ‘used’ Kinsler manifolds to save your investment !!! [ To Learn More – Click Here ]

GM Engine by ECR with Kinsler LS injection    –> Wins 1st and 2nd Place in Class (DPi) and Overall <– [ To Learn More – Click Here ]

This throttle body was made to Pat Musi’s specifications.  The Kinsler throttle body gave him a 20% increase in CFM over what was being used. [ To Learn More – Click Here ]

Rex Plastics is a second generation, family-owned and operated full-service plastic injection molding contract manufacturer. We make it a priority to have a positive effect on the lives of our employees, their families, and our local community. We insist on building our injection molds in the USA, and we only purchase domestic raw materials when possible. We have the passion and the knowledge to take your project from conception to completion. You can literally walk in our front door with a concept, and leave with product ready for retail distribution.

Kinsler Fuel Injection founded by Jim Kinsler in 1967 has been supplying the High-Performance and Racing World with the Highest Quality fuel injection systems and components.

The SRT Motorsport’s Dodge Viper GTS-R   #91 and  #93 with Roush powerplants.  We partnered with SRT and Roush on this program. [ To Learn More – Click Here ]

The Kinsler Tough Pump is available in sizes ranging from 1.8 to 7.55 GPM   (See Series 2 for 8.68GPM to  23GPM) [ To Learn More – Click Here ]