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350Z HR Y-pipe installed on a 2003 G35

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  #46  
Old 10-10-2008, 11:02 AM
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Quote:
Originally Posted by molidor01
DaveB,

How your car running? Going to install Stillen single path exhaust with 07 350z y-pipe...will dyno and post results.
I'm loving it, especially for $50. The driving dynamics have changed, though slightly, for the better. I swear the car is more responsive in the lower and midrange rpms. Another thing I've noticed is the shifting of the 5AT feels more responsive coming off part throttle shifts. It's hard to explain, but it's as if the line the pressure of the tranny has been raised to make for a firmer shift. I know this isn't the case, but it make me wonder if there really is a little extra torque in the lower rpms because I noticed this sensation with my Maxima and Z28 when I added some extra torque. I wish some others would post their results because I hate sounding like those guys that are in awe of some simple miracle mod

This weekend I'm going to make a video highlighting the sound.
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  #47  
Old 10-10-2008, 11:04 AM
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Originally Posted by gunluvS14
I am wondering if anyone has dyno result between stock DE Y-pipe vs. HR Y-pipe
I haven't seen anything. I think Godman and myself are the only ones running this setup.
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  #48  
Old 10-10-2008, 12:01 PM
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I have an 03 5AT sedan. I have a coupe midpipe, I think from an 04, and an intake. Last week I put the HR Y-Pipe on. Wow. I drained and filled my tranny fluid and had my fuel system cleaned at the same time, so I wasn't completely sure what was responsible for the significant increase in performance I have felt, but Dave hit the nail on the head with that last post. I absolutely feel quicker, firmer shifts, and hear and feel deeper, stronger exhaust notes, especially at low and midrange rpm, which is where the car stays for the most part with me because I do more city driving.

Overall, the car feels great right now! When I do get a chance to open it up it pulls HEAVY! If anyone has the chance to do this, try it! Outstanding difference! I can't wait to put my spacer on ASAP. Thanks for the heads-up Dave!

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  #49  
Old 10-10-2008, 12:42 PM
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Quote:
Originally Posted by Bigrose
I have an 03 5AT sedan. I have a coupe midpipe, I think from an 04, and an intake. Last week I put the HR Y-Pipe on. Wow. I drained and filled my tranny fluid and had my fuel system cleaned at the same time, so I wasn't completely sure what was responsible for the significant increase in performance I have felt, but Dave hit the nail on the head with that last post. I absolutely feel quicker, firmer shifts, and hear and feel deeper, stronger exhaust notes, especially at low and midrange rpm, which is where the car stays for the most part with me because I do more city driving.

Overall, the car feels great right now! When I do get a chance to open it up it pulls HEAVY! If anyone has the chance to do this, try it! Outstanding difference! I can't wait to put my spacer on ASAP. Thanks for the heads-up Dave!

Thanks for your review. You can thank Godmans for HR y-pipe idea. As far as I know, he's the first one to do it.
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  #50  
Old 10-10-2008, 10:01 PM
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I've got one coming on the way as well so we'll see how it turns out
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  #51  
Old 10-10-2008, 10:04 PM
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Installing Y-Pipe and stillen exhaust tomorrow. Dave did you reset ecu after install? Will dyno as soon as i can
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  #52  
Old 10-11-2008, 04:31 PM
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Quote:
Originally Posted by molidor01
Installing Y-Pipe and stillen exhaust tomorrow. Dave did you reset ecu after install? Will dyno as soon as i can
I didn't reset the ECU. I've never done it adding mods. Never really saw the point because when you reset the ECU, the default part-throttle settings are extremely rich and the timing is severely retarded. This means throttle response is compromised, your mpgs will be worse, and the car will feel a bit boggy. It takes a few days for the ECU to gather the correct fuel/timing maps.
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  #53  
Old 10-11-2008, 05:14 PM
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http://cgi.ebay.com/ebaymotors/Parts-Accessories___Nissan-350Z-G35-testpipe-Down-Pipe-Downpipe-Y-Pipe-07_W0QQitemZ230299581765QQddnZPartsQ20Q26Q20Access oriesQQddiZ2811QQcmdZViewItem?hash=item23029958176 5&_trkparms=72%3A543|39%3A1|65%3A12|240%3A1318&_tr ksid=p4506.c0.m245

this is a hr pipe i found on ebay. do you think this could work, because it looks very similar to the oem one?
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  #54  
Old 10-12-2008, 01:35 AM
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No, that is not the correct HR Y-Pipe.
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  #55  
Old 10-12-2008, 02:45 AM
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Installed y-pipe, stillen engine dampener and single pathway exhaust...i'll try and dyno it next weekend...want to drive it for a couple of days before I give my opinion. I did reset my ecu.
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  #56  
Old 10-12-2008, 11:54 PM
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hey guys if you come across an HR pipe, could you let me know. i want one
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  #57  
Old 10-13-2008, 12:18 AM
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Quote:
Originally Posted by 4drmadness
hey guys if you come across an HR pipe, could you let me know. i want one
yeah, no doubt, because the 350 crowd thinks those are gold. every offer I have gotten has been 100 or more.
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  #58  
Old 10-13-2008, 10:03 PM
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Go to my350z.com, they are all over that site. I just picked one up for $100 shipped...
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  #59  
Old 10-14-2008, 09:03 AM
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once they find out about this thread the price for HR ypipe is going to jump. supply and demand
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  #60  
Old 10-14-2008, 08:11 PM
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i count really find any 07-08 HR PIPE on my350z.com. There were a bunch of older pipes i saw. could you link me to anyone one of the guys who are selling it for $100. help would be appreciated

Last edited by 4drmadness; 10-15-2008 at 12:15 AM.
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2003, 350z, craigslist, custom, g35, hp, hr, hr y pipe, mid, pipe, sedan, size, stock, test, ypipe, ztube

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