Enhance the performance of your engine with the Spectre Performance 4954 Air Cleaner Riser Kit. This kit comes with a 5.125" neck and two risers, each with a height of .25"-1.75". The kit is designed to improve the airflow entering your engine, ensuring efficient and effective performance. The Spectre Performance 4954 Air Cleaner Riser Kit is compatible with most vehicles and is easy to install. It is a perfect addition for anyone looking to upgrade their engine's air intake system. With its high-quality construction and design, this kit is a reliable choice for anyone seeking better engine performance.