stage 2+ cone filters and maf

[Just Sean]

I think that if we are busting them with too much air flow, I.e an open filter, where more.airflow is needed for s2+ that their must be something wrong with their parameters or effective working range. It must be us breaking them not faulty components. Some are even braking with panel filters on stage 1?

I am just after a solution to stop them going. Are they similar to the bottom pulley where the 306 one is a bad design but the 307 is better... Same engine, better components?

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Are the a lifed product? Should they be treated as consumables