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Review Motordyne XYZ pipe installed.... Thank god

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Old Mar 26, 2012 | 10:56 AM
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Motordyne XYZ pipe installed.... Thank god

My motordyne XYZ pipe arrived saturday and I had the chance to install it on sunday. All I can say is that Tony from motordyne is my f'ing savior.

My problem all started when I installed my long tube headers. They are so free flowing and designed for a true dual setup, so I had an AWEFUL rasp in my Y-pipe. It was all I could hear my car sounded terrible. To give you an idea, here is a soundclip(keep in mind this is behind the car right by the mufflers with long tube headers, you can hear the rasp over the sound of the exhaust):



Immediately after I installed it, I called F.I. and they could not help me out and called Tony at Motordyne to discuss options. I REALLY did not want to spend another 10 hours reinstalling my stock headers. So he mentioned his resonated XYZ pipe, which I decided to try

Upon arrival, put the pipe together (you can change out the resonator section to an HFC or straight pipe)

Name:  IMG_0361.jpg
Views: 4845
Size:  203.0 KB

Quality is very good, welds are strong, etc.

Got under the car and took the amuse Y-pipe off and fitted this one in and bolted it back up within a half hour. However, the passenger side was hitting my transmission mount/some kind of brace under my car, so I had to take it back off and pound the mount in a little. It was a mount that is hollow on the inside so I didnt damage anything, just pushed it in a little. However, I am sure with a stock car, the system would fit perfect. I have long tube headers and such, which I know changed the fitment of the exhaust. So install was a breeze.

Once I started the car, there is a HUGE difference. The rasp is all but gone. I can only very very slightly hear it at 3.5K-4K under WOT. It sounds like the stock VQ hiss again, not amplified X 5 like it was before. It also quieted my exhaust down quite a bit almost to the sound level of my previous stillen exhaust. My iphone clips don't do it justice. I will get better clips soon enough to post in here. Same car/camera position as before. Also, after I installed my long tube headers, I immediately noticed a deficiency in torque below 5K rpms. You would hit the gas and it was just boring waiting to get to the higher RPMs. That is also now GONE. With this pipe, it feels like it added a ton back to the lower end. My car pulls now from 2.5K all the way up compared to just the long tube headers and y-pipe.


Last edited by ECain18; Mar 27, 2012 at 12:25 PM.
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Old Mar 26, 2012 | 11:13 AM
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Sounds 10 times better.
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Old Mar 26, 2012 | 12:20 PM
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this is exacyly why i cant wait to get motordyne full exhaust including test pipes when it come out
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Old Mar 26, 2012 | 12:28 PM
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u won't regret it. tony knows his stuff man
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Old Mar 26, 2012 | 04:01 PM
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Ive heard the motordyne on a 35 with fi resonated tps and it sounded v8 like.
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Old Mar 26, 2012 | 10:28 PM
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Originally Posted by ECain18
However, the passenger side was hitting my transmission mount/some kind of brace under my car, so I had to take it back off and pound the mount in a little. It was a mount that is hollow on the inside so I didnt damage anything, just pushed it in a little. However, I am sure with a stock car, the system would fit perfect.
I had the same problem with Berk HFCs and the Motordyne XYZ.
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Old Mar 27, 2012 | 12:35 AM
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Originally Posted by Abdiel
I had the same problem with Berk HFCs and the Motordyne XYZ.
Sell berk and buy art pipe
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Old Jun 12, 2016 | 06:49 PM
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Does Motordyne make a similar part for the X Sedan? I have the same exact issue, but don't know if the part will fit.

Necrobump.
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Old Oct 6, 2018 | 04:15 AM
  #9  
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370gt_alej
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Xyz resonated on awd model

Originally Posted by ECain18
My motordyne XYZ pipe arrived saturday and I had the chance to install it on sunday. All I can say is that Tony from motordyne is my f'ing savior.

My problem all started when I installed my long tube headers. They are so free flowing and designed for a true dual setup, so I had an AWEFUL rasp in my Y-pipe. It was all I could hear my car sounded terrible. To give you an idea, here is a soundclip(keep in mind this is behind the car right by the mufflers with long tube headers, you can hear the rasp over the sound of the exhaust):



Immediately after I installed it, I called F.I. and they could not help me out and called Tony at Motordyne to discuss options. I REALLY did not want to spend another 10 hours reinstalling my stock headers. So he mentioned his resonated XYZ pipe, which I decided to try

Upon arrival, put the pipe together (you can change out the resonator section to an HFC or straight pipe)

Attachment 173821

Quality is very good, welds are strong, etc.

Got under the car and took the amuse Y-pipe off and fitted this one in and bolted it back up within a half hour. However, the passenger side was hitting my transmission mount/some kind of brace under my car, so I had to take it back off and pound the mount in a little. It was a mount that is hollow on the inside so I didnt damage anything, just pushed it in a little. However, I am sure with a stock car, the system would fit perfect. I have long tube headers and such, which I know changed the fitment of the exhaust. So install was a breeze.

Once I started the car, there is a HUGE difference. The rasp is all but gone. I can only very very slightly hear it at 3.5K-4K under WOT. It sounds like the stock VQ hiss again, not amplified X 5 like it was before. It also quieted my exhaust down quite a bit almost to the sound level of my previous stillen exhaust. My iphone clips don't do it justice. I will get better clips soon enough to post in here. Same car/camera position as before. Also, after I installed my long tube headers, I immediately noticed a deficiency in torque below 5K rpms. You would hit the gas and it was just boring waiting to get to the higher RPMs. That is also now GONE. With this pipe, it feels like it added a ton back to the lower end. My car pulls now from 2.5K all the way up compared to just the long tube headers and y-pipe.

hey I've been wanting to get this y pipe for my g37x but it says on the site it's only on for the rwd models.
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