? about loud exhaust sound

[broyal17]

I've notice when I start my G37 when the engine is cold the exhaust is louder then if I start it while the engine is still warm. But as soon as I put it into gear it sounds normal. I was curious to know if this is normal or if it happens with anyone else's car.

[G_whizz]

I think your exhaust tone just changes because your car hasn't warmed up yet so your engine is "working harder"

[beestea]

Mine does the same thing... I think it sounds cool

But yea as soon as you put it into drive the growl gets muted.

[G37sdr1ft3R]

i just got a g37s mine is really loud and sounds really tuned when i first start it up when it hasnt been running for a while.. after that it sounds normal... kinda like the loud sound though when i first start it = )

[G_whizz]

Intakes and Stillen exhaust will give you that nice growl all the time... even more actualy. Not to mention the added hp!!

[Kazsmir]

My exhaust "rattles" when cold... I think its the exhaust tips after checking it out... seems to be while there is condensation in the exhaust it rattles (car also sits revving a little higher at first start, closer to 2krpm, then settles down below 1krpm after a short bit). I'm about to take it in to the dealer cuz I'm annoyed my almost $40k G37 is "rattling" in the morning with only 4300 miles on it...

[vtecsti]

The idle is set higher when the car is "cold". It helps warm the car/motor/oil up faster. There is nothing wrong with your car.