I'd steer clear of any claims of such power increase for not a lot of money.
The was a whole web page talking about these iffy mods and how they can damage the engine, so can end up costing you a fortune in the end.
I mean, come on, £2.50!!! With free shipping!!!!!
Rather spend £2.50 on a sponge
AND in the event
IT DOES do what it says on the box, this will use a lot more fuel. Think of it, why does a chip cost £200+.
You get what you pay for
