Philipp

I did the same (using K&N) on my previous cars and had no issues. My goal was to confirm if there was any gains or loss over the OEM air filters. Here's the charts on torque numbers (runs #3 & #4).

ps. Did anyone else noticed the drop around 4250RPM and what is it the cause?

Attached Images

	WTQ_WHP_run3.JPG (138.0 KB, 180 views)
	WTQ_WHP_run4.JPG (141.4 KB, 141 views)

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2009 370z, MT & Sport package.
DynoPack (stock): 268.8WHP & 224.4 Torque//K&N filters//Air cabin filter//HPS Tubes//Tune to come when VVEL...