I considered removing the snorkel removed but I seen an ad for DNA filter mods and I noticed that that they recommend a restrictor being fitted to reduce the size of the aperture into the mouth of the air filter when not using a power commander,
I have fitted a Kev's Mod, Pipercross airfilter and a GPR exhaust, so instead of removing the snorkel I shortened it considerably but the aperture into the airfilter has remained the same I have set the Kev mod to 9 oclock and WOW what a difference (brilliant).

Hope this helps