This rear engine plate for the Triumph TR6 is Manufactured from 6061-T6 aluminum, this light weight plate is about one third the the weight of the original steel plates. Designed originally for the racing community, and now available in quantity to the daily drivers wanting to shed some weight off of their cars or replace bent or missing original plates heavy steel plates. Each piece is cut out by a laser for a perfect fit, and very clean finish. Order one today, and get rid of some extra weight in your car.