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Old 08-27-2003, 01:29 PM   #1
CobraKLR
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Default Vishnu Uppipe

I'm sure this has been reviewed before but I though I'd throw in my own review. My experience was good and bad for this product.

First the good: the build quality of the uppipe is quite good, especially the flanges and welds. The unit is MUCH lighter than the stock uppipe. Power gains in the midrange are strong, and boost builds a little faster.

Now for the bad: This install was a MAJOR PITA. Don't let anyone fool you that uppipe installs are trivial. I had some fittiment issues with my uppipe. Comparing the uppipe to the stock uppipe showed that the flange angles are slightly off. In Shiv's installation instructions he states that they have had some reports of turbocharger installation angle variances - try variance in our flange angles compared to stock next time. I followed Shiv's recommendation for tightening sequences and guess what - exhaust leak. From 4000 - redline @ 10+psi the exhaust leaked. This was a PITA to identify as I could not get this to occur with the car parked. So I tore apart the car again. I was able to tell where the exhaust leak was by the exhaust stain on 2/3'ds of my uppipe intake gasket. I replaced this with a new OEM gasket and the problem was still there, even after doing the whole retightening proceedure again. I then put both the old and the new gasket in at the same time and resolved the issue. All in all this install took way too much time for the gains involved.
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Old 08-28-2003, 12:03 PM   #2
KanosWRX
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Was it the Flex or Solid uppipe?
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Old 08-30-2003, 06:56 PM   #3
CobraKLR
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Solid.
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Old 08-30-2003, 08:11 PM   #4
KanosWRX
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Ah, I had so many problems with solid uppipes I vowed never to use them again. I spent 840 dollars to go from a stock uppipe to a stock uppipe trying to get a solid one to work, taking it places, trying new things, nothing worked.
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Old 08-30-2003, 10:37 PM   #5
CobraKLR
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Doubling up the passenger manifold to uppipe gasket has worked out really well so far - although I have only put a couple thousand miles on the car since. If I had to do it all over again I probably would have done something else to the car - this install was nowhere near fun.
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Old 08-31-2003, 12:38 PM   #6
KanosWRX
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I actually tried the double gasket, sorry to say after awhile it started leaking again.
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Old 08-31-2003, 01:50 PM   #7
CobraKLR
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That sucks - triple gaskets? Just kidding. Seriously though I wish Vishnu had paid a little more attention to the lower flange angle.
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Old 08-31-2003, 02:08 PM   #8
KanosWRX
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My suggestion, if it leaks again send it back and ask for a flex uppipe from them.
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Old 09-01-2003, 11:30 PM   #9
wrxracer
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Default up-pipe's and leaks..

knock on wood, i am going on a couple thousand miles and no leaks from my vishnu up-pipe.. on the install i also had the thicker graphite gaskets put on i bought from a dealer in N.C... can't rememebr the name but they were sold on here.. now i knew from all the reports i had heard of them being a PITA to install, so i took it to a mech i know and so far all his work has been top notch... i love the extra punch & the little to no boost spike i was getting is just about gone...
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Old 09-01-2003, 11:44 PM   #10
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I also have had a good experience with my Vishnu 321 solid up-pipe, It's been in the car for 10k miles without ANY problems. The pipe was installed in two and a half hours with new OEM gaskets. It was installed by Kartboy Tom and it was only the second one he did All of the parts I have from Vishnu work perfectly, especially the Dyno Tuning !
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Old 09-09-2003, 02:26 PM   #11
Redleader
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I agree with XMEDIC! I've had my 321 solid uppipe for about 13k miles /OEM gaskets and installed by myself. No probs so far...
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Old 01-11-2004, 10:55 AM   #12
jaciuro
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I agree with all the positive posts. I've just installed my vishnu 321 solid uppipe yesterday and everything is fine. Granted, i've only driven with it for maybe 10 or so miles but so far so good.

It really was a pain to remove the factory uppipe. Once that was out the install of the 321 was pretty easy. As far as I could see, the flange alignment was great.

Of the whole deal, my only problem was getting the space needed to get the uppipe out of the car. I not only needed a few inches (by removing the engine mount nut) I needed several. I had to remove the other engine mount nut and lift it high. I got the pipe out, then in and noticed I couldn't get the mount bolts back in the hole they came from!!! After a while of different attempts. The driver side mount went in with a little hammer persuasion. The passenger (uppipe) side mount needed a 2x4 pry. I placed the 2x4 on the exhaust manifold and pryed it against the frame member (across radiator bottom area) that worked out.

Lastly, I noticed one last thing. After all my precautions by using flat piece of wood and a lot of rolled up plastic bags (for cushioning) the oil pan was bent!!!!!!!!! Remember, not my idea! Vishnu said to use that method with a simple piece of wood so as to not poke any holes in it when using a car jack (I used a hydraulic one)

Anyway like I said, the install is great so far. I have no CEL. I did some research and bought my own CEL fix for the uppipe. Cost $.99 @ radio shack. Actually they were about $.19 each since it was a pack of 5. Get yourself item # 271-1121 (2.2k Ohm resistors. 1/2 watt ~ 5% tolerance) I disconnected the uppipe sensor plug and simply inserted the resistor into the female (car side) of the plug. NO CEL!!!!!!!!! Good luck on your attempts.

Oh yeah, I ordered some header wrap from Summit Racing 1-800-230-3030. The factory (welded) uppipe heatshield would no longer be there, so I wrapped the uppipe with this and used some hose clamps (3). The car did smoke for a while. Thermotec said the wrapping would, as did the left over WD-40 spray.

Sorry this reply was so long, maybe it will help someone???

Last edited by jaciuro; 01-11-2004 at 11:03 AM.
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