Which air filter can I use to replace GT350 paper filter?

Had the FRPP stage 3 installed today, I've seen some people are switching out the GT350's paper air filter for a different air filter.

Which air filter (non paper) can be used in its place?

Any help is appreciated.

FRPP / Airaid GT500 filter.

Gibbo205 said:

FRPP / Airaid GT500 filter.

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Thank you sir!