 The exhaust chambers were...  The exhaust chambers were molded to the body of the car with body filler. |  The CNC exhaust guards were...  The CNC exhaust guards were bolted to the mold and the exhausts were test-fit. |  The concept car and the door...  The concept car and the door panel were installed on the car for a test-fit. |
 Quarter-inch MDF was cut to...  Quarter-inch MDF was cut to form the base for the tweeter rail. |  Half-inch steel pipe was flattened...  Half-inch steel pipe was flattened on the edges and bent to the desired shape. |  The rail was glued to the...  The rail was glued to the top of the door panel and checked for clearance in the door opening. |
 The tweeter mounts were glued...  The tweeter mounts were glued to the rail in proper placement on both sides. |  The speaker wire was precisely...  The speaker wire was precisely fed into the tweeter rail. |  The tweeter rail was placed...  The tweeter rail was placed onto the upper door panel for a test-fit. |
 Glazing compound was applied...  Glazing compound was applied to the entire door panel to fill-in scratches and surface imperfections. |  The tweeter mounts were molded...  The tweeter mounts were molded into the rail to create gauge-like pods. |  Here's a final mock-up of...  Here's a final mock-up of the door panel. |
 A 1/4-inch ABS oval was cut...  A 1/4-inch ABS oval was cut and flush-routed to become the base of the tweeter rail. |  A 1/4-inch MDF template was...  A 1/4-inch MDF template was cut and molded into the door panel, and transferred to acrylic so it could be the door-release button. |  Both fiberglass concept car...  Both fiberglass concept car bodies were aligned to ensure absolute symmetry. |