[Wisha Haddan H3]

Good info. Being a test engineer myself, I love real world tests so thanks for filling us in and for being the "guinea rig".

K&N filters do allow greater airflow, but they can only pass as much air as the engine demands. It looks like the I5 already gets enough air from the stock intake ... and at a lower temperature. So based on your results, the K&N offers little or no benefit on a stock engine with stock exhaust.

The K&N might still help after engine or exhaust mods, because they can process more air faster and the mods might exceed the stock intake's flow capacity.