One-Piece Race Spec Strut Tower Bar is constructed of strong aluminum with extremely tight tolerances and then polished to perfection. This bar ties the chassis from left to right at critical stress points (Between the shock/strut towers) to decrease body roll. As you drive and maneuver, your car undergoes many different forces that the chassis of the car absorbs; the brace helps to absorb the energy and directs these forces into your suspension components so that they can better do their job and serve their purpose more effectively. A must for any track-driven, and a great addition to any street or show car, this bar truly lives up to the Megan Racing name. ****REMARK: If your MX-5 Miata is not equipped with a Factory Strut Tower Bar, you will need to purchase an OEM Air Cowl Panel (Part No. N244-56-35X) from a dealership to complete the installation.**** ****Installation Note: Some MX-5 Miata models are equipped with different versions of the Air Cowl Panel. To install this front upper strut, the rear mounting position is required for Air Cowl Panel version N244-56-35X. For more details please refer to the installation image **** Application: For 2016+ MX-5 Miata "equipped with factory Strut Bar or OEM Air Cowl #N244-56-35X" (ND 4th Gen)