I see this guy around my area with a 350z, and his engine is loud!
even at low rpm's it is really a monster. It's not a low deep rumble, it's the sound of the actual engine (like each piston doing its job) What gives it that sound? Most videos on good exhaust pipes I see with headers and so on, its just a deep tone, not the actual sound, not really sure how to explain it.

 

v8 swap

 

and if it wasn't? Was else could it be? just a good combination of hfc's headers exhausts etc?

or is that not possible to hear the engine that well on a v6

 

Without actually hearing the car,I'd guess he was running straight pipes.
Or,its all "unmuffled".Why don't you ask him?

 

A cam change will also give more definition to the sound of the engine.

 

This - and also could be a plenum change. Ever since I changed to a Kinetix V+ plenum, the engine sound is much louder, even at lower RPMs. The manifold is some form of plastic, so might be the reason why sound comes out of it easier.

 

Just a simple pop charger and plenum spacer can make your car a lot throatier. Mine is louder above 3500 RPM and at low RPM in high gear when I stomp on it.

 

judging by your description id say he installed vtec

 

I definitely lol'ed!

 

Louder from the plenum spacer? I got one from Z1 and i've been too lazy to install it but I don't want my car sounding any louder so people will think it's somewhat modified.

 

Would you say it was more of a BRRRRRR or a RHHHHRRRRR or DRRRRR sound?

We might be able to tell what it was?

 

Did it sound like this?
or any of these?

 

Hahah I wish I could ask him, and yeah It's really a hard thing to describe a sound on the forums, sorry bout that, worth a try though

 

Just realized you're in SoCal, can you describe anything else about the car? I might recognize the car

 

Because race car

 

Andy when you hear hoof beats in the hallway, think horses, not Zebras. There is a little POS car down the block from me with a broken exhaust that’s loud as hell. When I hear it, I think open exhaust, not exotic engine swap, extensive mods, etc.

 

Blue 350z driver is Jason Shields, old friend of mine i see time to time. He does go to meets.

He's sponsored as well.
Not too much cosmetic changes.

 

That kid making the engine sounds was amazing. He nailed the rotary.

 

Ask him what he has in his car, mystery solved

 

I dont have his number anymore, and I rarely see him! When I do I hear it from a distance across the street.