Yes, please re tighten them after a couple thermal cycles. Its the thermal cycles that cause the metal to expand and stretch the bolts.

Its the same reason why Nissan puts their demon cat bolts on so tight in the first place. The stock bolts are literally stretched at the factory by super torquing them... and that is why they never come loose.

They are using a big impact wrench on the stock bolts and they really crank it down.
On the order of wheel lugnut tight.

I read somewhere earlier in this post that a bolt under the driver's side needs to be cut short to avoid rattling against these pipes. Is this still the case with the latest generation?

Yes, that stud poking out from underneath the driverside floor board needs to be trimmed flush.

Last time i had my car up on the lift, i noticed a stud on both driver AND passenger side. Are those different than the one we're referring to? Does anyone have a pic of it?

You're correct. There is a bolt poking thru on each side. However, only the drivers side needs to be cut down. Takes all of 30sec with a saw.

The stud on the passenger side is there but it isn't a problem and you dont need to do anything with it.

Tony, i'm not quite to the 1500 mile mark and the metal sound is gone, so that might have just been something that was loose in the pipes, or maybe it just cleared up on it's own.

I still have that sort of I guess sand sound? It's only when I let off of the gas, as soon as I put the gas down even a little, it goes away. Is this a normal thing or does it sound like a leak? Is there an easy way I can check to see if it is in fact a leak?

If anyone else has this sound let me know. If it's a normal thing then I don't care.. it's not irritating to me, but I don't want it leaking if it shouldn't be obviously.

Its probably the normal break in process of the fiberglass. Its probably just about done.

NOTE: There is no more fiberglass being used in production ART pipes from this point forward.

yeah, it definitely sounds like just sand or something in the pipes more than a leak... I just wanted to check. I just wasn't sure why it only did it under deceleration.

It may simply be a soft rasp if it only does it on decel.

So, I beleive the future-coming AWD version of ART pipes will not use fiberglass either?

Sounds like you're referring to the "hiss" that happens on deceleration. It's normal... kinda does sound like sand sifting through something.

The hiss that occurs on decel around 2K rpm is normal.

oh ok cool... well I don't care about that then... thanks for the info guys.

Motordyne Engineering ART Test Pipes Nissan 370Z - ARTPIPE-HR

Is this place really an authorized motordyne reseller? They've got a good price going on the ART pipes, but wanted to make sure it wasnt sketchy.

There is no more fiberglass in any of them from now on.

AWD clearance will be confirmed next week.

Yes, C.C.C. is an authorized dealer.

Would the be selling the new non-fiberglass ones or the old ones?

I don't know their stock situation off hand but you can ask them.

One way to distinguish the two is the latest edition has the vibration dampening tabs.

One of the vendors on here (fbparts) are even cheaper!

:tiphat: Perfect news!

Will there be two versions of ART pipes: for RWD and AWD? Or only one universal?

Only one universal.

bump for any news about the new AWD design!

The ART pipes have been confirmed to fit with much more clearance for the automatic transmission but it hasn't been fit on a X yet.

Anybody in the US who wants to test fitment on a X?

posted the link to this page on g35driver.com and myg37.com, all the people with the AWD are there ;)

I may know someone with an AWD who might be interested. I'll try to reach out to them.

So if the exhaust is pretty much done can we get a sneak peek at this thing . Sound clip or something ??

Just as quick note:

I took off the CNT Racing Exhaust a week ago. So now I have the ART Pipes on the car with stock exhaust.

Its still a very quiet car, but it has that Purr that I think the car should have sounded like stock. Its actually a very nice tone. Slightly understated but then a stock car shouldnt be ridiculous.

I'm sure it won't be too hard to find the volunteers, as a lot of X owners like to tune their exhausts too :)

I'm still waiting for the news about the AWD fitment, but will buy them anyway (I have good exhaust shop here, i'm sure they will custom fit almost anything :))!

The only thing I'm concerned of is the exhaust smell. Can I run Motordyne XYZ-cat pipe with my Borla H-pipe true-dual + ART pipes on my VQ35HR (i'm rather noob about the exhaust compilation fitment)?

Sorry, the XYZ pipe is not compatible with your Borla.

We are going to bring in a G37 later this week to adapt the 370Z exhaust to the G37.

Fingers crossed that all we need are simple extensions.:tup:

So I guess that means no sneak peak ???

Not really. I don't like posting pictures of prototypes built on the car. Its much better looking when the final product is ready.

Tony, I have a 2010 G37xS sedan. Shoot me a PM. I live just North of Chicago. I already have ERZ HFC installed.

Retorqued all bolts and still getting the same codes. Going to take off the M370 manifold to see if that's the culprit.

Footloose, and updates on your SES.

The sensor may simply be able to see that there are no cats. The extended sensor bung eliminates the SES most of the time but not 100% of the time. I wouldn't bother with taking off the manifold though. That doesn't have anything to do with it.

The only other possibility for the code is the sensor itself but that would be unlikely unless the sensor was dropped or damaged in some way.

PM'd:tup:

Would placing steel wool be an option here?

I dont think it's the sensors either bc the code is on both sides.