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Old 10-02-2002, 11:56 PM   #1
blusube
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Default Vishnu twin tip exhaust

I just got my new vishnu turboback twin tip installed and all I have to say this thing is a pretty damn good sleeper mod. Only a deep rumble at start up and idle. This may or may not be a good thing for some. Its pretty comparable to the m2 twin tip and also sounds like the scooby sport. Not sure compared to others. Install was a breeze although the o2 senser wire has a bit more tension, due to its new place. Power is wonderful acroos the entire band but especially down low. I figure the extra cost and wait for this exhaust is worth it. I mean a year of extra developemet couldnt hurt and considering that I'll have the car for a really long time its all minor change.
-nick
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Old 10-02-2002, 11:57 PM   #2
dorifto88
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cool beans!
Did you get the exhaust by itseldf, or did you purhchase one of the stages?
And was the cost worth it?
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Old 10-04-2002, 12:53 AM   #3
BOP
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this is pointless

Last edited by BOP; 12-04-2002 at 02:25 PM.
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Old 10-05-2002, 06:47 PM   #4
dorifto88
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regular, AFAIK the signature is single tip
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Old 10-10-2002, 11:52 AM   #5
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pics?
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Old 10-15-2002, 03:24 AM   #6
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Yeah, I actually saw one of these bad-boys at a local meet. It was on a silver wag and it sounded mean and also looked nice. I'm not too fond of Vishnu but I have to admit, this exhaust system is nice.

~joe
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Old 10-22-2002, 01:12 AM   #7
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Quote:
Originally posted by WRX-ellent
Yeah, I actually saw one of these bad-boys at a local meet. It was on a silver wag and it sounded mean and also looked nice. I'm not too fond of Vishnu but I have to admit, this exhaust system is nice.

~joe
what??????

now your off my buddy list!! j/k

hey Joe, have you seen my single tip from shiv?

-freddie
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Old 06-01-2003, 12:40 PM   #8
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I just bought this from CatchMe for $700 in excellent condition (all nice & shiny still, about 2k miles old). I'm moving to this turboback from a stock exhaust with Stromung muffler & 3rd cat eliminator. I still have the stock uppipe.

I don't agree completely with nick's review. This thing is a lot louder than just a deep rumble at startup. The rumble and classic boxer bu bu bu is loud, deep & especially nice at idle and those first few hundred rpms.

Above that it sounds like a fairly regular deep & loud exhaust; not super loud like a BPM, but very far from being OEM soft or even Stromung soft for that matter.

Doesn't bother me too much - I like loud as long as the note is exciting. The exhaust note on the Vishnu is a little monotonous though. What bothers me a bit is it does tend to get tiring on the highway once you reach 80 mph in 5th. I'm not sure if the term for that is "droning" or if its just loud and the sound seems to resonate more in the cabin, especially if you have the seats folded down in the wagon.

Power gains, however, are preeety nice I've also consistently thrown CELs twice now, each time about 50 miles after the ECU reset. My car is stock except for this turboback and an AEM CAI.

The exhaust does indeed fit quite nicely once its all on. When installing, the O2 sensor wire is a bit of a stretch - the original mounting clips have to come off and we drilled a small hole in the underbody to clip it up, out of the way of the driveshaft and preventing the wire from resting on the cat's heatshield.

The Vishnu downpipe piece is very long, and uses the mounting bracket originally used by the OEM midpipe. We bolted the downpipe to the turbo first and couldn't get the downpipe to bolt onto the bracket (was about 1" too far away). We had to loosen the dp from the turbo and bend the mounting bracket a bit to get this part to fit.

As with other downpipes I think - the turbo heatshield had to be cut as well.

From here on the other 3 pieces went on pretty easily. One annoying thing is that the rest of the exhaust mounts with no brackets, only hangers. I'm still using OEM rubber hangers so the exhaust does move around a little bit, I can hear it clang sometimes like when I start the car. I will be putting Vishnu or KB hangers on soon and hopefully this makes a difference.

Also note that this exhaust doesn't mate up to any other brand exhaust bits.

Once again my thanks to NESIC boys Mark, Rick & Dave for their generous help in installing this exhaust.

paul

EDIT: Some new observations. Here's a copy from my post in the NE forum.

I just noticed something really interesting about the Vishnu Turboback. When the car's still cold, the exhaust is really soft. Only barely louder than stock levels. It then grows progressively louder as the car warms up. By the time I reach normal operating temperature, the car's throbbing obnoxiously at idle

Last edited by paulatwork; 06-02-2003 at 11:39 PM.
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Old 06-02-2003, 11:05 AM   #9
LYHTSPD
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hey paul, can you take some sound clips of the Vishnu for us?
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Old 06-08-2003, 09:58 AM   #10
paulatwork
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Sorry, I haven't got around to getting a clip yet (don't have the equipment), but last night I got to compare cars back to back with a stock wrx.

I'm REALLY liking the Vishnu Turboback.

It's been a week or 2 now with it and I'm loving it loving it loving it. The sound is great - i'm not tired of it so I don't think its too loud, but its yummy as bacon wrapped scallops on the BBQ.

The power is fantastic!!! Honestly I have a very insensitive arse so beats me what is going on, but the car's zipping up to redline fast as hell in 1st 2nd and 3rd, and in 5th on the highway the car pulls up to 115+ very easily where before it seemed to pull slower after about 95-100.

At yesterday's auto-x I got plenty of comments about how nice my exhaust sounds It's not soft - that's for sure, its clearly very audible especially to others (I know because people keep looking when I'm coming) but it wouldn't be too loud for most (bit softer than a BPM GT Turboback).

Anyhow all this is just pointless gabble but I will say that I could not possibly go back to my Stromung muffler + midpipe setup; this turboback is just too much fun with its super bu bu bu sound, turbo screams from the downpipe and the fantastic power delivery. The only bummer is the CEL (of course, but fix is on the way), and the fact that its not interchangeable with anything else so i can't play around with different axelbacks.

paul
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Old 06-09-2003, 12:44 AM   #11
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Hey paulatwork,

I've just added a Vishnu TBE to my rex and have driven around for over 200 miles this weekend without CELs...

I do have a Vishnu Stge 0 reflashed ECU, but that wouldn't affect the P0420 cat inefficiency CEL - I checked with the folks at Vishnu about that...but *touch wood* I'm CEL free...

On the XXTuning's dynapack dyno I got a healthy 15hp & 20lbft gain (at the wheels) just from the bolt on - now I'm looking forward to the retune

FYI the folks at Vishnu don't like CAIs unless you have an FMI...have you pulled the codes?
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Old 06-09-2003, 12:03 PM   #12
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Hey Simon,

Nope I've been terribly lazy about getting the codes pulled I have, however, ordered my CEL fixes already (one for the coming uppipe too). Though I should definitely get the code pulled first.

Maybe I should go back to the stock airbox... hmm.

paul
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Old 06-09-2003, 02:21 PM   #13
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paul,

The sound is awesome though, isn't it?

Talk to davenow, I'm sure he'll pull your codes for you if you pay a visit to the autozone he works at...

Now I'm just upset that the day Shiv's retuning my car, is the same day as the exeter meet
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Old 06-09-2003, 02:30 PM   #14
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Ya, the sound sure rocks especially at WOT. Drones some at 80 but at other speeds its very pleasant.

Dave quit his job at Autozone, but I'm just going to the one in Natick on Rt 9

I can't make the exeter meet either
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Old 07-08-2003, 11:10 PM   #15
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OK here is an update.

The resonator has, for the longest time made very slight contact with the heat shield at the gas tank area in 2 little areas. It has not been a problem until last week when the car would make loud vibrating sounds on occasion, though usually just as I'm moving off from a cold start. SO! I got around to fixing it yesterday.

Took the resonator section off, then took the gas tank heatshield off. The areas where there was contact was quite obvious since it had been rubbing. I put the heatshield on my thickly padded slipper and proceeded to pound the contact areas out with a nice round giant paddle. I think I created about 0.7 cm of clearance.

Popped the heatshield back on and torqued the resonator back on. No more vibrations... yay Don't know if other Vishnu TBE owners have this problem or not.

Overall I am still pretty happy with this TBE. It is pretty stealth and sounds nice enough - power delivery is nice and smooth. I am hankering after a TXS setup with the RFL muffler though... just cos i want a fun loud exhaust

paul
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Old 07-10-2003, 09:58 PM   #16
dust12
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I just installed a vishnu TBE last week and I have the same findings. I get the Cat inefficiency error about every 200 miles usually when I'm letting off the gas.

When I am cruising at 80 the exhaust is a little loud for me. Does any know have any experience in quieting the exhaust. I'm thinking maybe some dynomat will help with the exhaust and road noise. What are your suggestions on quieting the exhaust?

Thanks
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Old 07-11-2003, 10:30 AM   #17
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Quote:
When I am cruising at 80 the exhaust is a little loud for me. Does any know have any experience in quieting the exhaust. I'm thinking maybe some dynomat will help with the exhaust and road noise. What are your suggestions on quieting the exhaust?
I have found that the exhaust mellows after a few thousand miles...maybe I'm just getting used to the rumble, but it seems quieter when cruising on the highway than it did initially.

Do you have a wagon or a sedan?
I didn't have the carpet in my trunk for a couple of days and the exhaust was noticeably louder...
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Old 07-11-2003, 10:47 AM   #18
dust12
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Quote:
Originally posted by SimonD


I have found that the exhaust mellows after a few thousand miles...maybe I'm just getting used to the rumble, but it seems quieter when cruising on the highway than it did initially.

Do you have a wagon or a sedan?
I didn't have the carpet in my trunk for a couple of days and the exhaust was noticeably louder...
I have a sedan. I think it is getting quieter but I'm probably either getting used to it or going Deaf. Eventually I'm going to try laying down a layer of dynomat or equivelant in the trunk and on the floor. Does anyone know if this will help, or should I be using something else? At cruise the exhaust isn't too much louder than road/tire noise.
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Old 08-10-2003, 08:41 PM   #19
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Question

Dose the Twin tip turbo back come with a cat in it anywhere? just wondering cuz im looking for a kit thats somewhat street legal. Thanks in advance
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Old 08-10-2003, 09:04 PM   #20
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Quote:
Originally posted by Einsti3n
Dose the Twin tip turbo back come with a cat in it anywhere? just wondering cuz im looking for a kit thats somewhat street legal. Thanks in advance
Your choice...

You can go either full catless or keep one high flow in there.

Power difference seems to be about 10whp between catless and one high flow.

I kept a cat and I'm very happy with the Vishnu Turbo Back. If you have any detailed questions give them a call, the Vishnu guys are really helpful, they've answered plenty of my stupid questions with patience in the past
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Old 08-13-2003, 08:30 AM   #21
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sweet thanks man, and yeah they are great, they were loads of help when i got my stage zero
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