I seem to recall some people questioning the integrity of the plastic
factory fuel injector rails in the WBX motor.

This must be a potential leak source, but are there any documented cases of
failure and fuel loss?

Aren't the ends plugged off with flimsy metal caps?

Just dreaming but wouldn't it be cool if a company like Bahn Brenner made a
billet aluminum fuel rail kit for the WBX?

16V rail shown in the link:

http://www.bahnbrenner.com/vw_audi/Fuel_Rails/BBM_Billet_16V_Fuel_Rail_Kit.h
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