HOTSYSTEM High Performance Drop-In Panel Air Filter for TOYOTA LEXUS ES350 High air flow with exceptional filtration Designed to boost horsepower and rate of acceleration It improves air flow and protects your engine for a longer lifespan for your vehicle Made of high density acrylic fiber, black rubber and double black reinforced stainless steel mesh HOT SYSTEM air filter is designed to fit perfectly in your stock airbox, and engineered for greater performance