My mechanic didn't touch that bolt. Maybe that's why. Cuz I do feel it is coming from the driver side footwell. I'll give that a look this weekend as it only vibrates sometimes.

 

Thanks! I'll have to try this out this weekend.

I'm currently running the Blitz Nur Spec exhaust.

 

Yes, that stud poking out from the floor board must be trimmed off or it will make all kinds of noise.

Also note, the ART pipes reduce or eliminate rasp greatly compared to regular test pipes but with some exhaust systems there can still be some rasp.

For example, with the stock exhaust, there is rasp. Its much less than regular test pipes but its still there.

And in all cases, the ART pipes are much quieter than regular test pipes.

 

The rasp is actually isn't that bad. It's just the metal buzzing sound I get after installing the pipe and It happend right after i installed the ART pipe. The buzzing sounds is coming starting from the mid-pipe (Or Y?) to the axle back, verified by two of my friends.

 

Do you have the picture of this stud that needs to be trim off? I bought the time and ready to install. Before anything I would like to get this taken care of before hand.

~Robert

 

It was in the instructions that came with the ART pipes, but it's just a random stud/bolt sticking out. Shouldn't be hard to miss as it supposedly "touches" the pipes so makes that buzzing/rattle sound so just look for that.

 

Quick OT.

Does anyone know what's the pipe or part called between the "Axle-Back and Y-pipe"?
No one seems to make/sell that individually. (or maybe I haven't found it yet)
And if that is a resonator or an exahust?


I'm debating if I should get an Motordyne XYZ-Pipe-resonated.


ART | XYZ-Resonated | ?Unknown pipe? | axle back.

 

I want to say it's a mid pipe.

 

I think you are right. I thought the same last night, but I wasn't sure b/c it's way far in the back to be a mid-pipe.

 

More update:

I removed both Heat Shield above the ART pipe, and it took 90% of the metal buzzing sound.

Replacing this with an adhesive heat shield.

----------

 

EDIT:

The buzzing is still presents after removing heatshields and muffler. The problem itself is the ART Pipe!
I will be selling this as soon as I get the PPE Header. The gain is awesome, but it sounds like crap!
If you are planning on buying a TP, I would just get Berks pipe. No need to spend $500.



Side Note:
RASP is not the problem, but a metal buzzing sound.

 

Trimmed that stub bolt and no more rattles. However, mine still makes a slight rasp sound under acceleration. Though it is not that bad.

I think the TDX2 by itself sounds the cleanest. Adding ART pipes gives it a better growl down low, but when up top, there is more metallic rasp/buzz whatever you want to call it.

 

strange....i'm looking to get rid of my hfc's for art pipes

 

I trimmed that stub bolt prior to the install so there is a lot of clearance.
I removed my muffler out and just had a custom Y-pipe with the stock tip for the time being and it sounds like a V8 at low RPM.

At around 2300 - 2600 is where that sound pops up and it goes away or gets drowned by the sound over 2600RPM. I have to assume that the motor gets a lot of load as the car keeps accelerating because I can just feel it vibrate (At 2300-2600). I'm sure you know what I'm talking about.

 

Standard test pipes or HFC cats will rasp hard.

If you have a rattle in your ART pipe, it's faulty and probably has a cleaning bead stuck inside it. If your pipes are older versions, this was a known issue, contact Motordyne.

ART pipes are clean sounding and do not rattle when not faulty and when fitted correctly. Their volume is much quieter than normal test pipes and HFC's, not much louder than stock.
On the stock y-back system, there is a little rasp when you accelerate firmly in the mid range. I cured this with the XYZ pipe resonator.

 

We got rid of the bead cleaning process long ago.

What is your complete exhaust setup?
It may very well be that you are experiencing rasp with your particular combination of parts. And rasp has a whole range of different kinds of sounds.

Some exhaust systems are prone to rasp (even with stock cats) and other are highly resistant. The overall interaction of parts is what makes the sound signature.

 

Call me to troubleshoot what is happening in detail. Its not supposed to do that. If its caused by the pipe its warrantied. If its something else, troubleshooting can help find what it is.

And yes, RASP can sometimes sound like a metal buzzing sound, but only troubleshooting can reveal what it really is.

 

^^I installed v2 art pipes, but the support bracket doesnt line up to the new v2 brackets. What can I do?

 

Its all in how you align and rotate the pipes before torquing them down. The brackets are aligned before tightening the bolts.

 

Thank you! I will call you soon. I will try and get some video first.