I'm almost convinced .
But I gues when Simon Norris built a 770bhp Evo costing over £70k he cant have known about that little webpage eh ?
And how many times have you run a car on rollers and how many times has it produced exactely the same power, the fact the person doing that test takes the differences in power so seriously suggests how little he knows about what hes doing. which also makes you wonder how did he test the performance figures ?
And I dont think throwing sand on your air filter with it attached to a hoover is particularly a good way of testing filtration, whats to stop more sand hitting it in 1 test than in the next ? and do you know how much static electricity is casued by a hoover, enough to attract alot of dust to any given object, whats to say in each test different levels of static were apparent ?
And correct me if I'm wrong but isnt it also a foam filter fitted to the 200mph skyline sitting up at hiteq ? I gues they havnt seen that web page either .