Steering this thread back on topic, Manu, for your chip tuning options, firstly, do NOT use any American originated remap, as they have completely different ECU set-up to EU market cars (they don't use the "Stratified" mode of fuel injection).
Secondly, avoid SuperSh!ts - they are NOT "official tuning partners" to VW - they merely pay to be an "official advertiser" for the racing series. There may be people who reckon the BluFin is OK, but there have been a number of reported problems here with both the product, and the aftersales service from SuperSh!ts. Instead, use a dedicated VAG tuning specialist, and one which is based in UK/Europe. Reputable VAG chip tuners include Revo, Oettinger and MTM.
A final word of caution with re-maps. If/when you take your car back to the franchised VW stealer for any servicing or warranty work, they may simply over-wright your Revo/etc remap with an updated factory VW map - so you need to ensure that whoever carries out the re-map, will also be willing to re-instate any following dealer over-wrights.