Right so i've decided to go with Revo as they offer a nice 55bhp increase for £587 and i've got 2 franchised revo dealers near by who can do it.
The problem is neither of them have rolling road facilities. After speaking to both of them its clear that all they do is hook a laptop up to the car, update the ECU and then hand the car back to me.
1. How do they know its 255bhp after the remap if all they do is update the ECU?
2. How do they know what boost, fuel etc timings to use for my car?
3. Are Revo maps generic?
4. Who am i?