I'm trying real hard to not drive the car too aggressively during the suggested breakin period, but the exhaust note sometimes sounds meager driven this way. I know it will be music to my ears if driven harder.

Anyone else have this problem?

 

Had mine about a week now,, I def. let it warm up reel good, ( something it does freakinly fast) then i very much Vary the engine speed, including finding its top speed,, ( mine will only go 131 mph) and some full throttle lanches, Mine is an X btw.....

 

There are already many threads about this, the most recent included a poll:

https://g35driver.com/forums/showthread.php?t=148114