[frankc]

I have the same issue that Solamar pointed out - after installing the Rennline cover I was unable to open the smuggler's box lid.

For those not aware, the issue here is that in 1977 Porsche moved the lower left bracket for the blower cover forward to accommodate the vacuum line for the new brake booster. The factory cardboard cover was made shorter to account for the master cylinder being moved from under the car to the trunk, but the metal mounts were not changed. This was not a big deal for the factory cover as the cardboard was easy to flex into position, but not so for the Rennline aluminum cover.

I am still deciding on which approach to take to resolve this issue (I was hoping that Rennline would have offered an improved set of asymmetric mounts by now), but will likely go the route that Solamar did with notching the cover and modifying the Rennline mounts (I think only the left mount will need to be modified in my case). My only concern with notching the cover is that it appears in the front photo that it may leave the brake booster vacuum line slightly exposed to objects that might be moving around in the trunk. However the side photo shows that the vacuum line may be recessed far enough back that this shouldn't be an issue.