Product Description: Premium Upper Coolant Housing Filler Neck for Enhanced Performance Upgrade your vehicle's cooling system with our Upper Coolant Housing Filler Neck, designed for efficiency and style. This high-quality component is essential for maintaining optimal engine performance and aesthetics. Applicable Model: Specifically designed for B16 B18C5 Type R Heads, this upper coolant housing filler neck ensures a perfect fit. Confirm compatibility with your vehicle model to prevent unnecessary returns and ensure optimal performance. High Cooling Efficiency: Enhance your engine's cooling capabilities with this radiator coolant housing filler neck. It improves the flow speed of the coolant, boosting the efficiency of the entire cooling system and making your car more powerful and reliable. Stylish Look: Beyond functionality, this engine upper coolant housing filler neck features a sleek and stylish design. It enhances the overall appearance of your engine compartment, adding a refined and personalized touch to your vehicle. Durable Construction: Constructed from premium metal, this filler neck is built to withstand high temperatures and resist rust, ensuring long-lasting performance. Its robust construction ensures it endures the demands of engine operation. Easy Installation: The upper coolant filler neck includes all necessary hardware for a straightforward installation process. Simply remove the old, damaged part and replace it with ease, minimizing downtime and effort. Improve your vehicle's performance and appearance with our Upper Coolant Housing Filler Neck. Designed for durability and efficiency, it is the perfect upgrade for ensuring your engine runs smoothly and looks great.