When my spiders and near side omocinetic joint needed replacing, it was very similar to having an unbalanced washing machine on full spin sitting on the axle- yes that violent a shake. I have the same again, so I'm hoping it's just the offside joint that needs doing now otherwise I've killed the spiders etc in 1.5 years.
If you go back to the early years of this 159 sub forum, there's plenty about driveshafts failing early on in the car's life and it's mainly with standard torque. Be nice to know how many people with remaps are having to replace driveshaft components way too regularly.
GT 3.2 V6 - Q2, KONI FSD & EIBACH PROKIT, GTA REMAP, MICHELLIN PS3's, BMC CDA
159 SW 2.4JTDM TI - ALFATUNED, WIZARD BACK BOXES, KW V3 COILOVERS, NOKIAN WR A3/MICHELLIN PS3, PCA DYNAMICS ALIGNMENT.