Here's mine... Remember this is intake temps not coolant temp.
As requested, I am furnishing the data you asked for concerning real world testing of an unmodified 3.6 pentastar/Jeep JK after your louver install dated 6/03/2016. Ambient temperature today is 104F. Motor was allowed to idle to temp, turned off, and restarted after ten minutes to allow heat soak. Louvers were plugged from the inside with duct tape and cardboard, then removed for contrast. All Temps wer taken while the jeep was stationary via the ECU/Air Intake sensor using a Can OBD2 "Memoscan".
Blocked/Full hood- 184F, 186, 186.
Vented- 154F, 155F, 155F.
Hood open- 123,123,125
I wasn't able to assess high speed results and wasn't about to tape yarn everywhere for airflow, but can truefully say driving and idling in this blazing Valley heat doesn't have the the constant whoosh of the fan any longer. AC is cold and no motor fatigue was noted.
In summary, yes.. I'd certainly say this modification was an excellent choice, and we'll worth the money. Don't hesitate to keep your baby cool. Thanks for the excellent work Mike.
Ton of shit, and not listing it all..