Ahhh but you see every hooker is different (see what I did there Steve)
Some are pretty and perform in amazing ways £700
Some are god damn awful and perform like a retarded dog £50 and a free STI.
Each car is different, ok marginally different, but still my map could be slightly different than another revup car. Mileage differences, could play a factor in this.
I don't think its THAT expensive, unless you get a tuner that charges way more than another but with a lesser result with the figures.
Wait what I get a free Subaru where do I sign up