Optimizes fuel combustion efficiency to save fuel consumption. For 4Runner for Celica ,Material:Plastic + Metal,Porous fuel injectors allow quick starts in cold environments. Reduced flow fluctuations for precise fuel control. Package Contents: 6 x Fuel Injectors ,Smaller fuel particles to reduce engine fuel consumption. Added fuel filtration protection to remove and optimize engine . High-efficiency combustion ensures complete fuel combustion, and high-quality and durable materials ensure you don't need to replace the fuel injector frequently, which also means you can save on costs. Effectively reduces engine exhaust emissions., Manufacturer: NMJLQW