ecu remap help

[OpenToSuggestions]

ok i know the ecu is the engine computer that runs the car, but when people are on about a remap what exactly does the remap make the ecu do different??

also as the remap increases power doesnt it mean the engine wears out more quickly, the gearbox/clutch/head gasket under more stress??
also wont the car fail its emmisions if its remapped??

for arguements sake say a golf 2 litre is remapped the emmisions would be too high for the standard 2litre.
please help me understand

are there any downsides to a ecu remap?

thanks in advance

 

[OpenToSuggestions]

so what your are saying trigger is that an ecu remap isnt going to make things wear out any quicker if the remap power increase is by a sensible amount (my friend has a golf tdi 150hp and wants 180hp out of it by a remap). When you say things will wear out quicker i assume you are on about thrasshing it and generally having fun which makes any car wear out quicker.

how would an ecu remap affect insurances?

say the 150 golf was remapped to 180 would the engine do less mileage before it blows??

thanks for the quick replies guys

EDIT: the ecu is what controls the boost given from the turbo??or can it just control the timing?

 

[OpenToSuggestions]

its 53 reg around 37k miles i think. he hasnt asked for help its just something i know of and can relate to thing is hes 19 years old and just floors it everywhere and actually scares me at times speshly when he overtakes.

i can fully understand the service intervals being closer together, as the higher tuned a car the more it needs servicing (thinking of an evo here very highly tuned needs servicing much more often).

can i assume that a remap to 170-180bhp wont wear anything out much more quickly at all if the car was not floored 95% of the time and overall not thrashed

 

[OpenToSuggestions]

i can change oil and service and do so because i believe look after a car and its more likely to look after you, but whats Ron95 fuel?? is that the 95 octane stuf (normal stuf opposed to bp ultimate or shell optimax). also whats cool warm turbos please explain