I don't know what a remap is. I don't want to have to do without a car for how ever long it takes to do the job. Wouldn't I have to notify the insurance company and DVLA if I modified the engine? Surely then emissions would be effected too making the tax higher?
Basically a `remap` is ECU software which changes the running parameters of the Turbo Boost pressure, fuel/air ratios, timing etc, giving extra power and torque.
The software is uploaded to your cars ECU and takes around 10mins. Its done while you wait and some companies even come to you!
If you decide to declare the modification to the Insurance company (many/most dont) expect around 25% loading on your premium.
The warranty would be compromised
IF the dealer was to find out about the remap in the event of a warranty claim.
You can get around this easy by installing a `switchable` remap, hence switching the car back to standard settings prior any dealer service/warranty visits.
These type of software mods, or remaps, are very very difficult to detect.
Loads of info on here, do a forum search.
People have been remapping the VAG 1.9 PD range of dervs for nearly 10 years so its a proven practice.
The main concern with remapping appears to be the longevity of clutches otherwise its amazing bang for your buck.
Cheers
Paul