Re: Undertray for a Alfa 156
The problem with getting a secondhand AR original undertray is that they have probably started sagging in the middle, and will ground on any street furniture, and will probably ground when the suspension bottoms out too. The aluminium undertrays supplied by Autodelta look a much better bet, they give greater ground clearance and shouldn't sag over time, only problem is if you have a 20v jtdm which has a larger gearbox then Zeatek (suppliers to Autodelta) haven't got a undertray cut for that yet, having said which Autodelta are happy to modify a 16v diesel one to fit.
One caveat is that an aluminium undertray will still catch some speed cushions, and it'll never protect the sump from knocks, it'll just protect the engine from dirt and water. The main reason they are fitted is for noise reduction purposes for EU regs.
Colnago, Vespa, Alfa Romeo, not neccesarily in that order, working to add Ducati, Ferrari, Maserati, De Rosa, Ciocc, again not necessarily in that order