The Vintage RAC Maxi-Tune Ignition Analyzer is a diagnostic tool designed for engines with 4, 6, or 8 cylinders. This analog engine analyzer from the reputable brand RAC allows users to easily check and analyze the ignition system of their vehicles. Though it does not come with a warranty, it is a reliable tool for troubleshooting and maintenance tasks. Perfect for vintage car enthusiasts looking to ensure optimal engine performance.