Aye.But what about my 3 year warranty when it all goes tits up!.
Looked at some REVO stuff but thought i'd wait till the warranty was up.The call of the M140i is strong.
Although there have been a few GTIs running 280-300ps and a few Rs running 365ps with a box having clutch or turbo issues (not many, but a few), i'm unaware of anyone with bother that could be associated with a tuning box on a GTD - they do seem to be over-engineered vs the petrol variants.
I ran a DTUK box on my GTD without issue for 10k miles before passing my box onto my Dad (as I was getting an R) and he has ran it on his GTD for 40k miles without issue.
Best way to imagine the GTD with a box on is to say it accelerates in 6th like stock does in 4th. It is a doddle to remove for servicing and warranty work, and most of the insurance companies charge you pennies for having it on (my premium went up a tenner).
The MK7 GTD is a bit boring compared to my Scirocco 170TDI, but that is due to how far the refinement has come and its very linear (for a diesel) power output that doesn't feel half as quick as it is when pressing on.
A boxed GTD will outdo a standard GTI or Focus ST (just) once rolling.