P1050G Seal Kit for Spitfire, GT6: $17.50
Closed cell oil-resistant foam gasket.
Very similar to OEM. SAME gasket fits tunnel, floor, and firewall AS ORIGINAL. Other kits with two different gasket types are incorrect.
This gasket is not quite as nice as the original OEM foam pieces which were molded to the shape of the Cover, but this is the best one out there. We buy it from The Roadster Factory.