Upgrade your RC model vehicle's performance with the Thunder Innovations Carburetor Return Spring, designed for .21 — .28 nitro engines. This universal compatible part is an essential addition for racers and hobbyists looking to fine-tune their 1:8 scale models, ensuring a consistent and efficient fuel delivery.

Crafted for durability and reliability, the package includes two springs, offering a fresh and affordable solution to maintain or improve your model's engine responsiveness. Whether you’re using nitro or glow fuel, these return springs are engineered to enhance your racing experience.