Top speed 155 my butt! but it has more in it.....

Has it been done? Coming from my previous cars it usually just takes a reprogrammed chip or ECU flash, can this be done with our jags? More specifically my jaguar s type r?

Thoughts and input appreciated!

 

there are some companies I know of (that I trust), but you have to send your ECU oversees. Depending on the mods done you could also get a tune for it for the same price, as usually you get free speed de-limiter with the tune.