08-08-2013, 08:31 AM
Tbf it's not hard to outrun an XSi lol....crap power from a 2.0 petrol (granted not quite as bad as the 2.0 MK4 Golf 'GTi' but still). Although I'd imagine XUDs were more likely de-tuned for insurance, tax and longevity reasons.
Back on topic, I haven't had an XUD, but I have stage 1'd a few diesels now - and stage 1 isn't necessarily 'fine'. It's unlikely to do any major damage, BUT I found it does show up any smaller faults - boost leaks, slipping clutch, broken EGR etc.... That said, if they're anything like HDi's they'll be undriveable without a stage 1!
Back on topic, I haven't had an XUD, but I have stage 1'd a few diesels now - and stage 1 isn't necessarily 'fine'. It's unlikely to do any major damage, BUT I found it does show up any smaller faults - boost leaks, slipping clutch, broken EGR etc.... That said, if they're anything like HDi's they'll be undriveable without a stage 1!