Hey Everyone,

I got a question about no drone axle-back systems. For Q50 you can buy a Helmholtz axle back exhaust and it sounds really good on the 3.7 engine which we G37 owners share. Kind of reminds me of a Motordyne system but not all of us have $2.5k to spend on an exhaust. Are there any options for us G37 owners? I am not sure if the one from Infiniti will fit. Everyone got their preferences for exhaust sounds I want that specific sound on my coupe.

I would love to hear some opinions from you guys on this subject.

 

Used to be only the Motordyne Shockwave or the ARK Grip were the only aftermarket exhaust options that used a Helmholtz resonator. IDK what the market is like today.

I've heard a few, and it is sexy as you can possibly imagine the VQ can sound. But it's also really loud, so there's that. And like you said, expensive.

Worth it? Yeah, probably.

 

They are all over ebay for around 400 bux
search "g37 cat back stainless"

 

I don't got the money for a Motordyne. $2.5k is a bit much. I might just buy the cheap ebay muffler delete kit and try to replicate the hemholtz design. That sound is 10/10 and i want nothing more, nothing less.

 

Not sure where you getting that info but I could not find a single helmholtz axleback system thats like the one for Q50. I also do no not like the Ebay axle back systems like the manzo and other cheap ones. I may just have to get one custom made.

 

Sorry if I was unclear, start with a HH cat back for a G and modify to fit.
My G37s set up is made up of a cheap ARK knockoff with medallion mufflers welded in.
This works great with my SC and long tube headers.
Maybe start w a used catback as an experiment.
I see cheap ones on FB marketplace all da time.
you could also add "bottles" to any setup you'd like
The volume of the HH tube correlates to the frequency your trying to cancel, so your specific car may/will need a specific volume to kill your specific drone.

another thing to think about, is the factory Helmholtz chambers on the intake. Most people ditch them, not realizing intake noise contributes to drone resonance as well.
but once you modify the intake tract, those chambers would need to be re sized as well.

let us all know how this shakes out for you

HH=Helmholtz
J tube = bottle = Helmholtz chamber

 

I'm thinking about buying cheap eBay muffler deletes and have a shop weld on some bottles. I'd risk making rough dimensions based off the Q50 one, to make sure it actually removes the drone. As long as I'm under $400 I could pull the trigger on it. I really do want that specific sound and based on some Q50 research, the 3.7 with this setup has minimal drone. I'm sold. lol