But you can, in fact it cost £zero, its the map the car has to start with..
Just because you can't see the difference in the jeans someone else can't see the difference in the maps. You know the argument, "the car can do the legal limit, why would you want more" etc
There are good cheep jeans, there are crap cheep jeans
There are good £200 jeans, there are crap £200 jeans
There are good maps, there are crap maps
It pays to check the quailty and shop around until you get something YOU are happy with.
Very true, but engine maps aren't normally promoted by overpaid 'celebs' or massive advertising. You don't see adverts stating "David Beckham uses Angel tuning remaps for his Hummer" and a big picture of the dim one standing next to the product - thank God!