Unleash the performance of your Polaris snowmobile with the SPI CDI unit, model number 3084007, a must-have for enthusiasts seeking to upgrade their machine's ignition system. This high-quality CDI box is designed to enhance spark timing and distribution, ensuring a smoother and more efficient engine operation, particularly during cold starts. Compatible with a range of Polaris models, this CDI unit is the brainchild of SPI, a brand synonymous with reliability and precision in the powersports industry. With part number 3084007, you're equipping your snowmobile with a component known for its durability and ability to optimize your ride experience.