10b For the guy who wants the interior to look stock, TMI products has the Sport Seat foam and covers. These get installed over a factory frame and offer more bolter support. If you need even more hold from your seat then you'll need to look at a full aftermarket unit, like the Corbeau GTS II. This budget-friendly seat offers a lot of thigh and kidney supports while still maintaining stock-ish dimensions. Corbeau also offers track assemblies that will bolt right into Camaros, Chevelles, Impalas, and Novas, to name a few.