On 20.4 I have an appointment with GP Tuning to vote on my PRB Kpros. Now I am not sure what to install. The Typhoon is registered in my vehicle papers and with the map “RSX Type S, cold air Intake dyno tuned” I notice hardly any difference to the AEM V2. Both systems are actually very, or almost too loud. With the original airbox, which has the Hondata mod it currently runs noticeably worse, but eats pleasantly quiet.