Intake & Exhaust Questions and info regarding various aftermatket exhaust systems for the G35 (Headers,Y-Pipes, and Cat-Back Systems)

350Z HR Y-pipe installed on a 2003 G35

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Old Jun 20, 2011 | 03:47 AM
  #841  
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^ You've got to be lucky to nab a HR y-pipe on driver bc they usually go fast once they're posted.


My advice is if you REALLY want one is to be proactive about it.

1. Look on my350z, my37, and your local craigslist postings.
2. Find local 07-08 350z owners and 08+ g37 owners who've upgraded to aftermarket exhausts and PM them for their y-pipes.
3. Be proactive, they are high-demand items and will not fall into your lap.
4. Remember, it's a nice oem mod but nothing earth-shattering. Don't expect the world from it.
 
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Old Jul 13, 2011 | 09:25 PM
  #842  
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So, after reading through all 57 pages, I haven't found whether to buy the HR Y-pipe off the z or no. I have a 2006x sedan, but I believe I read that some of the X sedans already come with some sort of Y-pipe? and it's not needed to have the HR Y-pipe. I just checked under my g today and it does seem to have the Y-pipe similar to the HR one. So should I still get an 08 HR Y-pipe off a local z? or just save the cash for something else? Thanks a bunch for any help!
 
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Old Jul 13, 2011 | 10:08 PM
  #843  
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Buy it just to say you have one! Hahaha Don't look forward to the rusty bolts/nuts.
 
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Old Jul 14, 2011 | 12:46 AM
  #844  
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Originally Posted by invadertim
So, after reading through all 57 pages, I haven't found whether to buy the HR Y-pipe off the z or no. I have a 2006x sedan, but I believe I read that some of the X sedans already come with some sort of Y-pipe? and it's not needed to have the HR Y-pipe. I just checked under my g today and it does seem to have the Y-pipe similar to the HR one. So should I still get an 08 HR Y-pipe off a local z? or just save the cash for something else? Thanks a bunch for any help!
From what I hear, it'll fit and have a better flow. Not sure how expensive/cheap you can get it for used. Good luck!
 
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Old Sep 20, 2011 | 05:30 PM
  #845  
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i have a 03 sedan with Test pipes , coupe mid, and a magnaflow muffler. i wanna get a Y pipe, but if i go with the M2 hr y pipe isn't that for 07 and up sedans? Or do i have to get the M2 De y Pipe? My rasp is still pretty bad so i heard before that a Y would help. If both are possible on my car isn't the Hr longer than the DE? Sorry for all the questions lol
 
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Old Sep 20, 2011 | 05:36 PM
  #846  
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Changing your y-pipe to an aftermarket one will likely create more rasp. What kind of TPs do you have? Resonated or non-resonated?
 

Last edited by CandlestickPark; Sep 20, 2011 at 06:16 PM.
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Old Sep 20, 2011 | 06:01 PM
  #847  
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non resonated, i screwed up when i bought thoses haha. so pretty much my only option is to get rid of them?
 
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Old Sep 20, 2011 | 06:02 PM
  #848  
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but still if i get a y pipe would i be able to go with either? i hear some people have problems with it hitting under their seat and vibration
 
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Old Sep 20, 2011 | 06:18 PM
  #849  
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Either M2 (HR or DE) will fit our cars. To get rid of the rasp I would definitely get rid of the non-resonated TPs.
 
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Old Sep 20, 2011 | 06:21 PM
  #850  
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alright thanks for the input, would you recommend one Y over the other?
 
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Old Sep 20, 2011 | 06:28 PM
  #851  
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If you are choosing between the 2 M2 Y-pipes I would go with the HR version. But depending on the size of the piping of your TPs and middy I would look for and HR as it might pair up better than the M2 (piping is larger than OEM and could create a bit of rasp, nothing like non-resonated TPs though)
 
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Old Sep 20, 2011 | 06:54 PM
  #852  
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alright sounds good i just found some Megan racing resonated Tp's for a good price thinking about giving them a try.
 
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Old Sep 20, 2011 | 07:58 PM
  #853  
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You'll still have rasp with those unless you change some other parts in your exhaust along with it.
 
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Old Sep 20, 2011 | 09:14 PM
  #854  
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like what would i need to change? Now i have test pipes "non resonated" coupe middy, and a magnaflow muffler. I wanna change to resonated test pipes prob Megan racing. Then add a M2 Hr Y.
 
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Old Sep 20, 2011 | 09:57 PM
  #855  
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The M2 Y-pipe has a 3" outlet diameter, which you have going into a 2.5" coupe middy. That will create rasp since the diameter will be getting smaller. You want it to be the same all the way through, or get larger. Never smaller. So in this case you would have to get rid of the coupe middy and Magnaflow muffler since they are 2.5".
 
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