when solving starting problems on my 400i (see my thread referring to this issue) i wished to replace the conveyors from the k-jetronic airflow meter to the throttle housing because the one on the r.h. side was broken (leaking). Fortunately this one was available but the l.h. part #113414 is obviously no longer available. Now i have two reasons to think about having this part reproduced: 1. The one in the car will sooner or later fail as well. 2. The new one delivered for r.h. side is the 412 design, which is aerodynamically improved. Now, the engine has a non-symmetrical look which i don't appreciate. I got an offer from a Swiss company doing rapid prototyping. The material will be laser sintered thermoplastic polyurethane which i consider suitable for this application. The only stumbling stone is the cost. It will be close to 2000$ for the CAD file plus nearly the same amount fore ONE finished part. This is a lot of money for the moment since it want it NOW mainly for aesthetical reasons, however if i will need it one day to replace a destroyed part, it is simply a question of getting the car back to street. I can see two ways to reduce the cost 1. search for a supplier in a lower cost country (Any other location must be cheaper than Switzerland) 2. Have produced 5 or 6 parts simultaneously. This will cut the cost per part to halve or even less (according to my Swiss contact). A combination of both could bring the total cost to an acceptable level. One of the usual F-parts suppliers has informed me that he had a number of requests bevor for the same part. Now i'm asking the 400i / 412 community if someone else is in dire need and would share the production cost and if anyone knows a cheaper source any where in the world to do this type of production. Sooner or later the official source will also run out of the r.h. conveyor #113413. If the CAD file is once available, both sides can be produced by simply mirroring the part.