was quoted £325 for my cupra to be revo'd @ letchworth autoway centre today.... still on the fence at the moment as to getting it or not?
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Yeah there are 4 different maps already on your ECU. The switch is used to change to each one. I dont know what your car will be set at. I'm guessing 95ron mode as the dealer won’t know you'll only be running the car on v-power they will cater for the lowest fuel quality.
If you switch to mode C the different map will use new timing and fuelling parameters (Not boost levels) to accommodate the higher quality more efficient combustion of the v-power fuel so will produce more power than you currently have.
You have two choices. Ask your dealer to swap you to mode C (they may have to ring revo for instructions) and save some money on the switch.
Or pay for the switch. Couple of examples of when you may need it:
I have used my switch this morning to turn off my map. No point having all the extra power in this weather.
If you are ever out on a journey and run out of fuel and for whatever reason can’t find v-power you will have to switch back to a different setting. If you have it set to mode C by your dealer and can’t find the correct fuel you run the risk of damaging your engine. 95ron on mode C could cause your engine to knock which is bad.
The cost would be £399+VAT for the software, and the switch would be £49+VAT if purchased within 28 days of the software.
The SPS isn't discounted at the same time as purchasing unfortunately, it's still £149. Unless different dealers decide to a better offer i guess.
Just booked mine in 5 minutes ago for next Thursday£352 all in. They said it would take an hour and a half, which was a shock as i was under the impression it could be done in under 45 minutes.
Yeah it wouldn't be too bad if it wasn't for the fact i'm gonna have to sit there re-reading the autotrader mag they'll have over and over for all that time. Hopefully it'll be quicker than that as i then have to go over to another garage and have the bov spacer fitted.

Do it yourself mate, was the most frustrating hour of my life! I came out a stronger person though![]()