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      05-12-2011, 10:06 AM   #1
Huy@Vishnu
 
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Arrow = = Vishnu N55 Catted Downpipe - Power Gains / O2 Extension Integrations = =

Vishnu N55 Catted Downpipe






Hey Guys,

Vishnu will be testing our high flow catalytic converter downpipe for power and fitment sometime next week. We now have our new O2 location for easier installs and to determine the length needed for our integrated O2 spacers. The Vishnu Catted downpipe is from customer demand for performance without additions of a catless downpipe smell and sound. Some consumers may not like the added turbo spool sound, therefore this option will offer best of both worlds for them. A happy medium between stock and a catless downpipe.

Specifications:

- The Vishnu Catted Downpipe is COMPLETLEY made in the USA. Our components within the downpipe are all made of 304SS which includes V Flange, Converter Casing, Piping, Brackets and O2 bungs. Vishnu has integrated one of the highest flowing catalytic converter for performance and sound on the market. The catalytic converter offers a metal matrix with precious metals for longevity and too withstand high operating temperatures. Like our Vishnu Catless Downpipe, the 3.5 inch offers a precision CNC'd V Flange for the tightest seal and a single laser cut (dual exit) flange for rigidity and fitment. This catted downpipe will be in a mill finish to demonstrate our quality over other competitors and coated finishes. One of our newest additions to downpipes are the integrated O2 extensions to help with any possible Check engine lights ( CEL ) / Service Engine Lights ( SEL ).
We are currently having a Pre Order Special and may not last soon with the orders we have been getting.

Please email sales@vishnutuning.com for more details, or shoot robert@vishnu / Huy@Vishnu a PM and we can take care of any questions at this time.

Keep Posted and Have a great day.

Our Test Vehicle:

STOCK DYNO'D AN AVERAGE of 280 WHP and 284 WTQ

CATTED N55 DYNO AN AVERAGE of 288 WHP and 297 WTQ

STOCK VS VISHNU CATTED

VISHNU N55 CATTED








Last edited by Huy@Vishnu; 06-06-2011 at 02:00 PM. Reason: Added Dyno Sheet, added video
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      05-12-2011, 12:10 PM   #2
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Did I miss the power gains part?
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      05-12-2011, 12:51 PM   #3
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yeah interested in some dyno #'s
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      05-12-2011, 04:23 PM   #4
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FD Franklin, you did not miss it, we will need to have some more preliminary testing done before we release results. We have tested ourselves but we will need to run a completely stock car in order to release info on the product. A customer currently has the cat less version and will offer his car for dyno testing because his wife did not like the smell with the catless version.
Thanks John for the loaner :-), keep posted for results.
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      05-12-2011, 05:07 PM   #5
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If you wanted to ship me one i'd be happy to do before and after dyno's
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      05-12-2011, 05:10 PM   #6
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Quote:
Originally Posted by FDfranklin View Post
Did I miss the power gains part?
I think we got fooled by the thread title. I'm hoping we will get to see some good dyno numbers for the catted downpipe. Any type of dyno numbers from a catted DP seem hard to come by.
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      05-18-2011, 10:34 AM   #7
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Quote:
Originally Posted by Swadeness View Post
I think we got fooled by the thread title. I'm hoping we will get to see some good dyno numbers for the catted downpipe. Any type of dyno numbers from a catted DP seem hard to come by.
This is true, therefore we are testing both our different versions of the DP to see if there are really any difference. The catted downpipe looks like its making a little under our catless downpipe.
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      05-18-2011, 11:25 AM   #8
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Got to see one of these in person over the weekend, and it looked good and well-designed (pre-production welds, mind you).



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      05-18-2011, 12:19 PM   #9
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Mr Clarkson,

It was nice meeting you and your GF/Fiancée, hows the 135 running with the procede update?
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      05-18-2011, 12:28 PM   #10
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Quote:
Originally Posted by Huy@Vishnu View Post
Mr Clarkson,

It was nice meeting you and your GF/Fiancée, hows the 135 running with the procede update?
Cars as good as it was before, thanks. Just waiting for an email from Rob more info on that new meth kit you guys showed me
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      05-18-2011, 01:19 PM   #11
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Does anyone know if a dealership would allow a catted DP? When I asked my dealership they said a downpipe would void warranty, but I didn't ask about a catted one..
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      05-18-2011, 01:27 PM   #12
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Quote:
Originally Posted by FDfranklin View Post
Does anyone know if a dealership would allow a catted DP? When I asked my dealership they said a downpipe would void warranty, but I didn't ask about a catted one..
I believe the catted version will also void the warranty as well because its not OEM...

Depending on the dealership and service advisor, if you find a dealership that is mod friendly then they would be happy to take the car in as is.
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      05-18-2011, 01:40 PM   #13
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Quote:
Originally Posted by FDfranklin View Post
Does anyone know if a dealership would allow a catted DP? When I asked my dealership they said a downpipe would void warranty, but I didn't ask about a catted one..
Which is why you don't tell the dealership about your engine mods. Unless they were looking for it, or working directly under the splash shield, they'd only even notice a catless DP based off the smell.
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      05-18-2011, 01:51 PM   #14
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Quote:
Originally Posted by htt760 View Post
I believe the catted version will also void the warranty as well because its not OEM...

Depending on the dealership and service advisor, if you find a dealership that is mod friendly then they would be happy to take the car in as is.
A warranty can't be voided period. However, if a part fails they can deny replacement of said part if they can prove that the aftermarket parts modification led to the failure. So if you swap in a catless DP and an o2 sensor goes you're probably sol, however, put in the catless dp and your maf or oil pump go they'll warranty the replacements. Make sense?
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      05-18-2011, 02:49 PM   #15
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Quote:
Originally Posted by Focusedintntions View Post
A warranty can't be voided period. However, if a part fails they can deny replacement of said part if they can prove that the aftermarket parts modification led to the failure. So if you swap in a catless DP and an o2 sensor goes you're probably sol, however, put in the catless dp and your maf or oil pump go they'll warranty the replacements. Make sense?
In a perfect world. In the real world they'll do whatever they want. They can ask you to pay for anything, claiming your warranty is voided for any part that isn't there's. You can Moss-Magnuson Act all you want, but they know that you aren't going to lawyer up over a $800 service bill.

It all comes down to how nice the dealership wants to be, or how inattentive they are to the fact that you even have non-OEM parts.
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      05-18-2011, 04:07 PM   #16
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Quote:
Originally Posted by Focusedintntions View Post
A warranty can't be voided period. However, if a part fails they can deny replacement of said part if they can prove that the aftermarket parts modification led to the failure. So if you swap in a catless DP and an o2 sensor goes you're probably sol, however, put in the catless dp and your maf or oil pump go they'll warranty the replacements. Make sense?
Thanks Focus. Completely understand

This I understand, whether we agree or not, the dealership will still VOID the warranty. Not the complete warranty but your car is now re flagged for modifications. The time spent to try a get them to warranty something will be hell and it is not worth getting stressed out about it, whether it be a pump, sensor or whatever...
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      05-25-2011, 08:31 PM   #17
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bump for ADDED DYNO and power gains. Currently Taking pre orders on the catted downpipe guys ... please contact Robert sales@vishnutuning.com for further information..

or just PM us for any questions
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      05-26-2011, 08:35 AM   #18
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8 whp and 14 lb/ft of torque...not to shabby...very nice!
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      05-26-2011, 08:42 AM   #19
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What about with a tune? Also what did the non catted put down?
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      05-27-2011, 09:26 AM   #20
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Is there a dyno graph showing Stock vs Catted DP? Or Tuned vs Tuned and Catted DP?

The numbers that were posted only shows small gains at the peak. I am more interested in the gains throughout the powerband, specifically the low RPM range where it seemed the Catless Dp made most of its gains.
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      06-02-2011, 08:07 PM   #21
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Quote:
Originally Posted by FDfranklin View Post
What about with a tune? Also what did the non catted put down?
I will post one up on the next updated. Enjoy the video

Quote:
Originally Posted by daixloxbmw View Post
Is there a dyno graph showing Stock vs Catted DP? Or Tuned vs Tuned and Catted DP?

The numbers that were posted only shows small gains at the peak. I am more interested in the gains throughout the powerband, specifically the low RPM range where it seemed the Catless Dp made most of its gains.
I can have a comparison PM'd to you, please PM me with the request and I can get that over to you....


JUST UPDATED WITH THE VIDEOS and sound clip
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      06-02-2011, 09:17 PM   #22
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Quote:
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I will post one up on the next updated. Enjoy the video



I can have a comparison PM'd to you, please PM me with the request and I can get that over to you....


JUST UPDATED WITH THE VIDEOS and sound clip
Why not just post it :?
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