Agreed when it's opened up.

It's the daily driving I'm specifically talking about. Unless I'm playing around I doubt I ever get much over 2200 rpm, there's no need to with the "down low" torque the car has.

If the chart is accurate in that rpm range, it may not be quite so easy to do that since it appears to be significantly lower in that area. For my uses, that in itself may be worth the extra $ for the HKS.

Not bashing the knock-off at all. Sounds like a great deal, and from what I can tell from the clips....it may even sound better (although that's subjective). Just making an observation on the only dyno ran with the X02(that I know of).

 

Simple fix...take first gear to 7K problem solved....shift into 4th and done

 

I have the stillen currently and its really restricting my air flow for being twin turbo'ed Power enterprise.. but they sound good..

How much gain can you see in changing a exhaust w/ an x pipe, to a true dual like the X02?

Also, wouldn't cabin noise be greatly reduced since its free flowing duals?

 

Noise is about supression....if you have larger pipes which arent insulated somehow they will be louder in the cabin no matter what

Some guys add a little more insulation underneath and well as around the piping itself

I would imagine the cats and smaller piping are the most restrictive part of an exhaust....dont know the piping diameter of the stillen but I am willing to bet teh X02 is the same or larger than the stillen for sure...both make great power NA....for boost though the cats are probabyl the most restrictive part IMO....dual 3" or better for boost IMO ....AAM makes a nice 3" dual



The flagship of the AAM 3” exhaust line, the AAM Spec 3” MaxFlow True Dual Exhaust System is the highest flowing exhaust available for the 350Z & G35. Designed to support the most demanding volume and velocity flow requirements, the AAM Spec 3” MaxFlow True Dual exhaust system is a perfect match for any Turbocharged 350Z, including 800rwhp+ competition setups.

The AAM Spec 3” MaxFlow True Dual exhaust system comes with a specially designed 3” inner diameter flange on each side that bolts-up to either the factory cat pipes or most aftermarket 2.5” test pipes. Twin mandrel bent 3” polished stainless steel T-304 16 Gauge exhaust tubes run along each side of the 350Z’s undercarriage. Two high-flow stainless steel resonators ensure straight through flow and a deep exhaust note. By significantly decreasing thermal load, the AAM Spec 3” Max Flow True Dual exhaust system provides the maximum reliability for your VQ35 engine and its internal components. Preliminary testing has shown gains over 40rwhp on high horsepower turbocharged Z’s vs. the factory exhaust. The AAM 3” Max Flow True Dual is the ultimate 350Z exhaust and an engineering work of art. Available with optional titanium tips.


Sorry if this came off as a sales pitch or something but its a nice piece for a decent price

 

wrong. HKS gives 19rwhp. someone posted a dyno chart.
and dont be a cheap ***

 

I am sorry but I don't buy the 19 wheel hp - I wouldn't even buy 19 at the crank. Remember the exhaust shoot out in Z-Magazine? I think the best exhaust gained 9 hp.

 

If I remember correctly (have to try to find my dyno sheet) the HKS exhaust gave me about 12-13 rwhp from the exhaust over stock....

 

Unless it was done back to back on the same day on the same dyno, its really not valid. Too many changes in parameters and whatnot between dyno's.

 

back to back dynos...... its the only way I dyno for work purposes

 

^Then if thats true, good gains.

 

yes but i am sure that there tune was off resulting in them actually loosing power from added mods.

 

Knock off is better if its lower and deeper higher pitched sounds liek hondas seriously. Dont hate cause peopel now have the same exhaust for less then half the price and u paid 1500 hahaha. you could have bought the x02 exhaust, MD spacer, Test pipes and a intake all for the same as for the price as that one exhaust to me u would be stupid to pay 1500 but tahts my opinion

 

heres a video of the XO2 from outside http://www.youtube.com/watch?v=QRC1Tq3l4VA

 

wow im impressed anyone who was knocking it listen to that sound clip it sounds beautifull better then the hks to me not ricey at all no rasp sounds freakin great ordering one asap

 

if anyone has teh x02 with test pipes i wanna hear i really want test pipes but i dont want rasp. Poor hks guys everyone is gunna have that exhaust now hahaah

 

and the best part is, it keeps getting better and better as u break-in the exhaust. that video is about 3 months after the install. I got it when it first poped up on here for like 550 i think. That was with shipping and everything else.

 

Damn, that sounds pretty good!!! Sounds way better than the HKS clips...I think I might give this one a shot if I don't buy the Borla

 

hmmmmmmmmm....this exhaust has sparked my interest now...

 

I own the Xo2 knockoff, and I installed it with a set of their resonated test pipes. If you don't want any "rasp" then I suggest going with another setup. I hated how raspy it sounded between 4k-5k rpm, so I cut the center section and added 32" long, free flowing glass packs. (sorry no pictures or clips yet) Now, I love the way my setup sounds, and I prefer it to everything else I have heard, except Ryan Danis's aps extreme twin turbo Z, with the aps 3" exhaust. That is one of the meanest sounding street cars I have ever heard. Are there any true dual setups that dont get raspy when combined with test pipes?

 

u said it bro. There arent any!