Hello from Germany
I've also tried to start a group buy in the German Fiat forum "Cento-World".
After a great interest only a few peoples are left, so that the pricing was out of space. I enquiered from SFS (by the way, they wasted my sample ) and Viper-Performance. If you can find someone make the 4-way adapter, the kit will be possible but, from my point of view, even than there will be only a few people who will by it.
I made it with standart hose and couplers.
Did he give a price? or a rough guess at what they would Cost?
I thought they were different as the return pipe to the expansion bottle is located in a different place? The spi has the return pipe coming from the front of throttle body to the left of the expansion bottle, where as the mpi has the pipe coming from the exit pipe of the heater matrix and goes on the rear right of the expansion bottle and is all one piece of pipe.