Hey all,

I have a completely stock 2008 G37S which includes stock air intakes. I bought it this past winter. Now that the weather is warmer, I've begun to drive around with the windows down and have started hearing a whistle-like air sound when I'm 3/4 throttle and my automatic is shifting from 1st gear to 2nd. It only lasts a second, but it reminds me of the noise that an aftermarket air intake makes. Do our stock intakes make that noise, or do I have a leak of some sort?

For what it's worth, I do not hear the whistle at normal acceleration / calm shifting, and I don't hear it at full throttle (but that's probably because all I hear is the engine!)

Thanks!