Hmmm . . . I would seriously reconsider using Superchips! They don't have a particularly good reputation, and many of their dealers have kicked them into touch, as their back-up and R&D was pants.
Superchips also have close links with VW and are the Official tuning partners of VW racing.
I'm afraid they are
not the "
Official tuning partner of VW racing". VW Racing develop their custom race re-maps entirely in-house, with no technical support from Superchips whatsoever. Superchips are merely an advertising sponsor, in exatly the same way that Marlboro are advertising sponsors to the Scuderia Ferrari Formula 1 race team - or did you thing that Shumis red car needs 40 king size for each lap

If you have some info for me that would make me think twice about going back to use them again, then I would not use them again.
I have two entirely separate nuggets of info. The first, I used to own a Vectra 2.6 V6 GSI, and I approached Superchips at a stand at a MotorShow. I asked for chip tuning details, and they basically offered me what looked like an utter shambles. They showed me a dyno printout, the torque curve was not a curve at all. There was more peaks and troughs than at Hugh Heffners girly partys, and the basic profile was actually lower than standard, all the way to about 5½k rpm. Peak power was increased, by about 6bhp, but to do that, they had to raise the rev limiter by about 700rpm. Close examination of their own graphs overlayed with OEM graphs actually showed a decrease in torque and power throughout the "day-2day" user rev range, between 2k and 5k rpm.
Secondly, a highly regarded Bosch independent engine tuner, who has won many awards for his work, was one of the original Superchips dealers. He still has Superchips listed on his website, but ask him for chip tuning of VAG products, and he will discorage their use, and steer you towards REVO. Why, because REVO have considerably better R&D and back-up, and their finished products are miles better than Superchips. He basically said to me, at the end of the day, he makes the same profit from either chip tuner on the original sale, but then looses out, because REVO have the facility to custom remap virtually immediately, whereas Superchips are completely unable to re-write custom codes at all! Superchips
may be fine if you
only re-chip, and do absolutely
no other mods, but as soon as you start with other tweaks, including exhausts, de-catting, filters, induction, etc, etc - then Superchips become as useful as an ashtray on a Space Shuttle!
I have, however used them in my last 4 VAG cars and had no issues. 
Fine, good for you.

But as I don't know what your previous VAG motors were (apart from your current TDI, which, lets face facts, can be very easily tuned by crude and simple overfueling!), I can't comment. All I can re-iterate, is just how extremely difficult it was to crack the code on the MED9, the ECU for the FSI turbo motors. OK, Superchips may claim they have done so, but I would put my left kidney on the fact that their code is not a match on the real VAG-only specialists.
Just look at the Superchips website - the list of car manufacturer names that wizz along the bottom beggar belief: Kia, Hyundai, Honda, Isuzu, Nissan, Daewoo, Fiat, Citroen,
LADA,

? - a real jack of all trades, master of none! And do they really claim to chip tune Ferrari and Maseratti.
Hmmm. . . personally, I would prefer to use someone who is dedicated soley to the VAG brands, knowing that their ongoing R&D is not detracted to tweaking Kias!
Each to their own though, and as always, just my own opinion!
