Time has come to give my ZDX a real quad exhaust with a more serious sound and output. I really like the stock exhaust tips, hard to custom make anything better, so I decided to do something without getting rid of them.

First I disassembled the exhaust tips to see how it looks. Luckly the reflector in the inner section (which I already wrapped with black vinyl from outside) was easy to disconnect. The tip itself is held on four bolts.

The only option for quad exhaust I could imagine was to meld a custom formed tin with the inner section of exhaust tip like in its outer section so there would be a nice place for additional exhaust pipe. It would also require cutting the plastic frame that once held the reflector in its place.
A local custom exhaust shop agreed to do this along with the whole project and they did it nicely.

Cutting the plastic frame was easy.


And the exhaust tips return to their place perfectly.


The exhaust tip suffered minor damage because of melding in certain spots which is barely visible actually. Maybe later I'll wrap it with chrome or gray 3D carbon vinyl but it looks fine so far.




In a couple of weeks the whole custom exhaust parts will be ready and the ZDX will become really mean. So far I ordered
the part of exhaust starting from the end of the J-pipe. Its gonna be 70mm pipe with the last cat replaced by a flame trap, main resonator and mufflers also replaced with flame traps, and ending with two 60mm pipes on each side

Later I plan to get a J-pipe from RV6 once they finish it, and decide something about the main two cats near the engine.

 

Great write up, really am excited to hear what this thing sounds like. Keep us posted, you make me proud

 

Thanks man! The mods I am about to do will make it sound nicer, but the thing will seriously sound if I get to remove all the cats and get a supercharger

 

Sounds good, will be watching for your update.

 

if you find a supercharger that fits and works, I would really like to hear about that. The quad exaust is a great idea!

 

With a greater delay the exhaust is finally finished, a little bit crude but its inevitable when you do a non-factory system
That thing is pretty loud now, I'm worried that my wife will execute me Will post a video soon
Fow now, the pics

This once was a catalizer, now its not

 

Need to hear what it sounds like.

 

wow Sandro looks crazy! I hope it sounds as good as it looks post videos soon!!

 

Here is the video
In 'drive' it sounds even louder, I think I'm going to tune the loudness down a little. Also because of the split exhaust tip it whistles like a turbo in full throttle, so no matter how funny it is I'm gonna fix that too
[youtube]http://www.youtube.com/watch?v=sGKUg6BSHT4[/youtube]

 

Sandro, that's pretty cool!
I wonder if you can make it 'growl' like the Aston Martin DBS...
(Please??? ;-)

Everytime I hear that sexy beauty growls, I just lose it all...
My dream car...

 

if i figure out how to put a v8 (or is it v12?) into the zdx))

 

Have you considered not making into dual pipes until closer to the rear?

The car doesn't sound horrible, but I wouldn't say I'm a big fan of the sound currently.

I would suggest staying single tube (2.5") and getting rid of that muffler that goes 1-2. Run that all the way back to where the two single resonators are, and put a y-split there, out to the two small mufflers/cans you have now.

 

Without 1-2 muffler the car will definitely sound like a rocket))
On the road its way louder than in park mode revving
I'm going to optimize some things in the exhaust but the idea will be the same

 

I think it sounds awesome in "park" mode.

 

Well, you can replace that 1-2 muffler, and replace it with a single muffler that stays 2.5" without splitting into 2 pipes. Just a suggestion, I've gone through many, many exhaust setups and found that's been one of the better ways to get a fuller exhaust note out of V6's.

 

Great job!!

 

thanks people)
I'll revamp the system in a week or two and post new pics and video

 

Add an 18" resonator and that thing will song deeper and quieter.

 

Any updates?

 

waiting for parts again since everything is custom made

 

How goes this project?

 

I ended up leaving it as it was, only changed mid-section pipe to 57mm (this lowered the drone and made the sound a bit more quiet), but planning to get an RV6 J-pipe in April-May, which will probably affect the sound again

 

Sweet. Thanks for the update. I have a local shop looking into a config on my ZDX. Not sure if I really want to spend the cash right now...considering I'm trying to get some wheels for it.

 

I'd definitely go with the wheels first

 

Agreed. I'm pricing out Vossen wheels now since I think that setup mugen_kid did was stellar. Not much of a price difference between 22s to 20s. Anyway, didn't want to jack your tread on this. Thanks for all the pics on the setup incase I do end up going the same route.

 

Wow Sandro very nice setup. I love your white ZDX I just got a black one. The white really looks share with the dark glass roof. It gives it a nice contrast.

 

Thanks

 

Any more news/ Updates?

Still waiting on a new video!

 

I would love to hear some in car video driving around with this setup.

 

There are not enough ZDX video's on youtube!! I want to see some driving video's as well. I wish Windingroadmagazine would drive this car. They do 10+ minute POV road tests with mixed driving!!

 

waiting for RV6 j-pipe arrival in May most likely it will get a bit louder again
probably will get a bigger main resonator too to reduce the noise if it gets too loud

will try to make a in-car video today

 

That would be awesome cannot wait to see. Looking at your pictures makes me regret not getting white sometimes it looks so good on the ZDX really shows off the glass roof.

 

Thanks.

 

iPhone quality but you can hear some ))

 

Sounds nice! I just drove my MDX tonight and was like WTF the gauges are small and pathetic compared to the ZDX. It has one of the nicest looking gauge clusters.