66-72 1x4 Holley Green Performance Filter

Green Performance Corvette Air Filters are excellent replacement air filters for Corvette owners who want to upgrade their air intake without changing the entire system. Unlike multi-layer gauze filters which can fray and release fiber particles into your Corvette's engine, Green Performance Air filters use two layers of tightly-interwoven cotton fabric. Because the fabric is so durable, Green Air Filters can be washed and reused over and over, which is why a lifetime guarantee comes with each one.

Other Corvette air filters use a simple pressure molded injection process to bond the perimeter rubber to the interior components. That method saves manufacturing time, but in the process, a considerable amount of rubber can seep onto the filtering surface. This can restrict airflow as much as 25%. Green Filters go through a precise 4 step production process, which virtually eliminates seepage and maintains maximum airflow through the filter. Other features of Green Performance High Flow Corvette Air Filters include:

• A hand molded flexible rubber base
• Air tight seals
• Custom fitment tabs
• Deeper air filter pleats which creates 20% more filtration surface
• Race proven gains and technology
• Steel mesh coating for extra strength and durability

Note:Zip Corvette has Green performance air filters manufactured from a special gray material to simulate a stock air filter. You'll get stock the advantages of a performance air filter without having to compromise your Corvette's factory appearance. Fits all 1966-1972 1x4 Corvettes with the open element air cleaner.

Green Filter Item Number 2000