hello and thank you all for your advice

wat do you reckon is the best air filter 2 go for

standard,k and n, or pipercross? currently bike standard i have a dynojet kit to fit , have been running it on art racecans which may b noisy but giving me better mpg , with no ill effects, standard cans r back on bike for the mot but id like to fit the dynojet kit n race cans,im not sure wat filter would provide best reasults

.dynojet seem to sugest standard filter but i just not 2 sure wat set up would work best
