Holley is pleased to announce the release of CataClean in new 16-oz. Twin Packs. Cataclean is a specially developed formula for your vehicle which can reduce hydrocarbon emissions for gasoline engines by as much as 50 percent. Proven to fix power loss, hesitation, and hard starts, it's a patented EPA-approved exhaust-system, engine, and fuel cleaner that helps prolong vehicle life.

CataClean reduces carbon buildup and cleans oxygen sensors, fuel injectors, and cylinder heads without altering fuel composition while improving fuel efficiency and restoring maximum catalytic-converter efficiency. Legal in all 50 states, it's also available for diesel and hybrid engines and a perfect pre-treatment before emissions tests. It's simple to use – to maintain proper engine operation, just pour it in your tank once every three months.

See complete product details for CataClean 16-Oz. Twin Packs.