Fuel Saver

[Preston]

Hey guys,

I'm looking into buying one of these:
Fuel Saver

Can find another example here:
Fuel saver 2

Do any of you guys use these? Are they any good? Any disadvantages to using one? From what i've read they save on petrol and increase performance, all for just over a tenner, there must be a downside?

[Foghorn Leghorn]

there must be a downside?

Yes, there a con, you'd be better off setting fire to your money

Fog

[Preston]

hmm alright then, thanks for the tip