Posted on January 28, 2021January 28, 2021 by Injection MoldingInjection Molding for Tier 2 Automotive What is “Tier 2 Automotive”? See bottom image that explains Tier 1 and 3. Carburetor Rebuild Kit Carburetor and Fuel Injection Rebuild Kit Fuel Injection Kit Difference Between Tier 1 & Tier 2 Companies