I do realize there is another thread on the forum on this topic but mine seems a bit different. My G37S Coupe 6MT drives fine when its cold or if I'm driving around casually but once I drive it more spiritedly, after like 20+ minutes of frequent and aggressive brake usage I can begin to notice some slight brake vibration, I can mostly feel it in the pedal. At first I wondered if the rotors were warped but I noticed that once things cooled down, it was back to completely normal. Does anyone have an idea of what is wrong? Do others have this?

Thanks

 

How many miles on your car?

 

I've got 20k miles.

 

I'd start with getting your rotors resurfaced first and new pads. I had a similar issue on my mother's Accord. Turned the rotors and broke in some new pads - problem solved.

 

I had the same issue. Went to infiniti and they resurfaced the rotors for free and put new brake pads. This was only in the front and they did it under the warranty!
i bought brake pads and put them in the rear and now they are perfectly fine

 

Also, if you never changed your brake pads and you have the non-sport, mine went out at 20k miles

 

Thanks guy. I guess I'll look into having the rotors resurfaced and will go for new pads.

 

It's probably pad deposits on one or more of your rotors.

As stated above, resurfacing will remedy the problem.

Please make sure to properly break in your newly resurfaced rotors and new pads to prevent this in the future. The proper procedure is in the DIY caliper painting thread I believe.

Good luck