sorry, i was confused by your quote of EPA regs which only referred to noise,
FWIW - i got an engineers certificate for my B16A Prelude, it had a exposed K&N pod and was fully tested, and certified compliant with ADR's by an RTA approved engineering signatory*.
* DISCLAIMER - just because my car was certified like this, doesnt mean it is fine for everyone to drive around with uncertified pods...



B20VTEC - since 2002

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