Well, I dont know the language they are speaking, but you couldn't use 1.9 TDI pistons, and I didn't know of a 1.9 IDI engine. I would also be suprised that there is enough material in the block to bore it oversize enough to get 2.8 liters. The max overbore pistion thats sold is 1mm, which ends up increasing the size to about 2.5 liter.
Jason
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