So,

I have a 2009 G37s Coupe.

I currently am running a simple setup, with the top speed axle back exhaust sounds decent but a little ricey so I want a more lower deep tone.

Now what I need help with is, the Motordyne Y-pipe.
I am stuck between the straight pipe and the resonator.

I like the sound of both but I fear the straight pipe may be too raspy once I hit higher Rpms.

Any suggestions or videos of the difference?

 

yeahhhhh...... if you dont want loud/raspy dont go with test pipes........ lol

 

Resonated for sure if you're staying away from rasp. I hear the m370 deepens the tone a bit too.

 

Thank you guys!!!

 

Granted I have a sedan, but it should be the same as I don't have any stock parts left except for the cats. Adding a Y-pipe made my Top Speed y-back deeper and a bit louder as well. No rasp at all but a little more drone at highway speeds. Should be similar for your setup.