| After about a year of having these parts .. I finally put them to good use. If you want the complete story, check out my ZCON post here I swapped over my Abeler manfolds, down pipes, exhaust as the SZ reinforced inconels I had were developing cracks. I couldn't source any MS manfolds in the time that I had, so I took the items off of the Demon Z instead. Below are a few pics of the installation 
Abeler manifolds installed ( lowers the turbos deeper into the chassis. No more engine pulls to swap out turbos anymore ! ) 
Abeler custom 3 inch downpipes ( is that titanium ? ) 
once mounted onto the test pipe, there only 2 bends to maximize exhaust gas velocity 
custom 3 inch test pipes 
tight fit --but it fits with little fab work needed ( re-orient compressor inlet 2 bolt flange and shave motor mount ) 
V-Bands - no more bolts ! 
My observations are the following :
I previously had the Labree Ultimate downpipes ( and yes, they are a PITA to remove as compared to SS downpipes ) I used to have
1) sport 600 / 3 inch random tech downpipe / ported manifolds and I used to have the
2) GT28RS / 2.5 inch SZ SS downpipe / Inconel manifolds previous to my most recent setup of
3)GT28RS / 3 inch Ultimate Downpipe / Inconel manifolds. I can say that I immediately noticed some torque loss ( how much ? I DNK ) below 3.5K rpm to the ultimate downpipe setup and the car below 3.5k feels more like the SZ SS downpipe setup that I was running. I can say that above 3.5k the Z pulls extremely hard ( it seems to pull better up top than the SZ SS downpipe setup ). Also what is interesting is that my boost response seems better ( quicker to spool ) than previously. Right now the Z is running rich ( dual widebands show A/F @ 10:5 ), so I will retune in the near future After thinking about it a little, everything seems to make sense. I could be wrong on this, If I am, someone keep me honest in my thoughts. The benefit of a divorced downpipe is exhaust gas velocity not turbulance. The wastegate doesn't flow / open until the cracking pressure is reached. Until then the turbine side is flowing into the smaller downpipe tube as compared to an open 3 inch downpipe and consequently will have higher velocity speeds. Once the wastegate opens at say 15psi on a big turbo car, the wastegate exhaust gas will flow uninterupted in a divorced downpipe design. In a 3 inch downpipe with no divorced design, once spooling, the wastegate exhaust interacts with the turbine exhaust. Though there maybe some turbulence, I believe that the wastegate exhaust velocity speed is faster due to the interaction with the turbine side exhaust. I think the example of how two streams of water interact when one is moving faster than the other best suits what I am trying to describe here. Short story, I think that the max boost will be reached quicker on an open down pipe design ( less restriction / more open area ) with the sacrifice being some mid range torque. On a big turbo car, it might produce max power faster with an open down pipe design. I have never seen a dyno chart in time series so I could be totally wrong here in my thoughts. Anyway, I am looking forward to re-tuning the Z to see how well these manifolds flow with the open exhaust setup I have. Once tuned, this baby should make some good power up top and my midrange torque may come back with the proper 11:5 setup. If not, leader gears may be an option down the road depending on how I like the power band.
=============Sig begins here================ The Devils Z.com 
"Even a broken clock is right twice a day" ...AzHeat on February 21, 2007 at 1:59 PM
"I would have had to have balls the size of China to think I could get away with overcharging someone 5 times the going rate for that install." ...Kyle(Houston) on February 21, 2007 at 12:22 AM "....Thanks captain obvious, would you recommend air to resolve a low tire pressure situation? coolant to keep temps down? perhaps a battery for electrical devices? " ... LJZTT on June 10, 2006 at 6:36 PM "How the hell would you have gotten on the track had you not *somehow* purchased a ticket? He's so overzealous about making other people look bad, that he sticks both feet down his throat. It's fun to watch though :) " ....ZEngineer on June 07, 2006 at 6:22 PM "as useless as an EGT Gauge..." *shakes head* Its comments
like this that hold the Z32 community back. " ....Z-Jay (Edmonton, AB) on April 21, 2006 at 11:46 AM "Somebody give this man a medal. Arguing with kenny is like being in the special olympics" ....ENVYMYZ on November 01, 2005 at 11:59 PM " .. going back and forth with you on a stupid point is like watching a retarded kid double dribble in basketball, you get tired of calling foul all day" ... Slowninja(GT28RS Inconel Z) on October 03, 2005 at 8:43 AM "the only chips you know about are Doritos. =)" ...ZEngineer on June 11, 2005 at 4:23 PM "....These posts only serve to make you look even worse, its gotten so bad it even makes me look bad to reply to you...." maglito on January 22, 2005 at 3:11 AM "What, are you afraid that only a couple of good ones have rolled off the production lines and the rest are crap?? ... Its mechanics not the stockmarket." ... ZisLuv on May 03, 2004 at 6:12 PM 
The Devils Z Pic
666 rwhp dyno The Demon Z pic (in progress)
View Me! Disclaimer : Not Safe For Work !
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Abeler Manifolds, Downpipes , Exhaust components installed - 
