hi
for start i`m pleased with the performance and sound of my 05 350Z with the current setup and i want to keep my stock exhaust for now , i`m looking foreword to try the XYZ Pipe to reduce the RASP as much as i can without losing power or sound so :
1) if i used the XYZ- straight pipe dose that mean i will have better sound but will not reduce or eliminate rasp (in MD site you mentioned the elimination with the resonator and catalytic XYZ pipe only)
2) if i used the XYZ resonator or the XYZ Catalytic Converter
i will lose the sound ? quieter i mean ,if not which one is better of those two ?
3) i`m using Berk HFC , would i lose low end Tq if i used the XYZ Catalytic Converter (two High Flow Catalytic if i understand the pipe correctly)
i searched and no video`s or threads about comparing or sound with a stock exhaust .

Edit : i found part of the answer in MD site : ( By incorporating a resonator or even a catalytic converter in the XYZ-pipe it allows you to take advantage of the higher power gains available with test pipes without sacrificing the sound quality, power or exhaust smell)

 

you answered most of your own questions as you pointed out, but you are correct, I have yet to see any vids or reviews of a stock system using the xyz pipe in any form.

My guess is if you add the xyz-straight with oem cats and oem y-back system you will notice a slight gain in volume, but I would think it would be very slight, much less of a noise change compared to being stock with testpipes. I would also think that there would be no rasp with using the xyz-straight with oem cats and mufflers.

 

Precisely.

I don't have videos of it but there are several people doing exactly that with their stock exhaust and they like it.

I normally don't run the stock exhaust on my Z but when I did drive with that combination I noticed it slightly changed the flavor of the exhaust note. The loudness barely changed and of course there was no rasp.

 

1) It will change the sound slightly. A little louder and brighter.

2) Yes, either one of these will reduce the sound, but in your case you already have the berks so you don't need or want the XYZ with catalytic converter. The resonated XYZ will be much better for your application.

3) Use the resonated XYZ. The resonator provides a small bump in TQ at low RPM and it will provide a better sound.
The resonators bump in TQ is small, but its reliably there every time I've dynod it.

 

thanx guys ,
mmm correct me if i`m wrong please :
from 1 you mean there will be RASP but brighter louder sound .
from 2 no RASP but lower tune or sound .
power is not an issue with this comp.

if i`m correct i will go with the stright XYZ ,i don`t want to lose sound .

 

1) No. No rasp. Just a little brighter and louder.

 

briliant , if you please PM me with the price of the XYZ stright pipe to kuwait .

and tony ,can you provid JWT intake system with it ?
if u can let me know for how much so i can order it together with the XYZ pipe from u .
thank you for your help

 

PM'd

 

is this the same idea with an 07 Z? and will the xyz pipe fit in 07 z?

 

Yes and yes.

 

Can I have free stuff?

 

 

^PM'd

 

motordyne ftmfw

 

cool thanks that's going to be my next mod

 

This might help I have a G35 I had just the XYZ pipe with stock exhaust for about a week. It did give it a "brighter" sound as Tony says. I had told him that I felt like it smoothed things out. Its not an over whelming difference. But if you know your car you can tell the difference.