- higher frequency of engine oil + filter changes
- the stock wheels are larger making tyres more expensive
- traction can be an issue causing premature tyre wear to the heavier footed of drivers
- fuel consumption isnt so great
- as mentioned, if you have an issue with a turbo, i.e a seal goes etc. Can be expensive to rectify
- if the car is still running the stock intercooler, this will more than likely need replacing, did mine recently and the stock cooler pretty much fell apart in my hands!
- in general, more to go wrong
I just believe that a car with a turbo, is more like to cost more to maintain than an n/a. I guess if you had an n/a, and a TT, both stock cars, both with FSH, it'd be a different story - then again, maybe im talking sh*te