Been looking at some air filters for my UK spec EVO 8 FQ300 and being that alot of the stuff on there is already HKS i thought id stick to the scheme of things and have been looking at the power flow filters.

How much difference is the racing suction unit is it really worth that amount more that the norm, i dont usually go for induction kits cause i know the performance rewards aren't really worth it but they sound cool i know, with that in mind i should just go for any filter as they all sound good... what are peoples experience of the HKS filters?