FYI - both early & late style trays will fit any 70-76 914.
The late style added a ridge & a couple of troughs to strengthen the plastic trays from warping & drooping over time from the heat of the engine.
If yours is a DD &/or possibly used in the rain, then you'll want the late tray.
That's because early trays would warp L & R between the mounting screws on the forward edge, then a heavy enough rain would pour onto your firewall, get behind the pad, & then cause rust on the firewall & engine tin lip. Don't ask me how I know!
The early style tray has a smooth bottom, & Porsche superceded them after the problems with the early ones, so they've been NLA as new parts for a couple of decades.
914Rubber's repro is a shiny fiberglass material IIRC - so it may not be what you want if you're doing a fully concours 914 resto, unless you shoot it with a matte or flat black paint to repro the OE look.
However, IIRC Mark had them done with more stiffness so that they won't warp - but you need to PM, email or call him at 914Rubber to check on that. Mark & I discussed this reinforcement need when he was going to start on them, but I don't know if they did so.
If the 914Rubber ones are reinforced so that they won't warp, then that would be okay for a DD or car used in rain.
Cheers!
Tom
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