"The main feature of the Saber-edv is to simulate the DUMP VALVE PSSSSSSST sound, but without spending lots of money on a big exspensive turbo conversion."
I call £130 spending lots of money, especially on something that doesnt give any extra power at all, infact it and only saps more voltage! Save your £130 and put it towards buying a car with a turbo if you can't live without the PSSSSSSSST sound....
Anybody who buys this should be forced to carry a pillock warning sign on their roof.