New MA Fuel Injectors, LB7, 2001-2004, 8 pack NO CORE CHARGE! Merchant Automotive uses a New Bosch injector and then has them updated to our specifications. They include the new chrome plated ball seat for corrosion and wear resistance and updated injector body that is resistant to internal cracking. These injectors have the latest DLC coated needle tips (where the needle contacts the nozzle body), chrome ball seats, updated body material, and Merchant Automotive specific changes to improve function and durability. Covered by a 12 month / unlimited mile warranty! Can I use these injectors with my existing stock injectors? Yes, these injectors will work alongside existing stock spec injectors. Are these injectors re-manufactured? No. These are new Bosch injectors updated to meet Merchant Automotive specifications.