I pay £600 for insurance(buisness cover including UK and EU breakdown cover) When I checked on internet cheapest insurance after tuning car was £1100. That is £500more plus tuning price £300(give or take).

800 pounds. Tuning increases mpg people say but how long will take till I get money back.

Thanks for advise guys but I will stay with my hubmle 105bhp and in the future will buy more powerful car

TSI or TDI time will show.

Who knows what job and where I will have

If you do remap - you can't "remove" it and install in a different car - when you buy chip - you can reprogram it for few £££ and install in the new car.

Increased mpg is a past - when modification was done using resistor now you should get at least 15% better mpg and a lot of oomph