Hi, I would like to upgrade my Golf 4 with 1,9 TDi, engine code ALH. Dont want any big modifications like bigger turbo, clutches, intercooler and so on stuff which i read has to be done in addition and cost millions of $ and then you still are not sure what will happen. So, I researched a lot on the internet and i am thinking of accepting an advice to put a chip. In Vancouver they recommended me this: http://www.dieseltuning.ca/item.php?url=DIGI-Z10 Will apreciate if anybody share any experience with this chip in particular or any other as i am still a bit afraid to do it. For me, like not an engineer, this chip sounds like it will make the engine work harder and will eventualy wear it out faster or may be break it down. I may be wrong, its just my opinion as if the factory engineers built the engine with certain characteristics and then the engine is tricked to do others with same hardwear. seems to me is like drinking energy drink which makes you run longer and faster without feeling tired, but in fact you are damaging your body. Anyway, please share your opinion. Thanks!