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Old 07-02-2003, 02:58 PM   #1
well_armed
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Default Vishnu Signature Series Turbo Back Exhaust

Application: MY03 WRX Sedan
Miles Driven: ~1,000
I'm 23 (this may influence you old foggies perception of my write up, so I thought I would include it)

1. Sound- The car is much more aggressive at all rpm levels, on or off boost. With the windows down, the exhaust note is very pronounced and throaty. I believe it sounds very good, and it does not become too cumbersome. Windows up, it is very quiet and managable. I can talk on my cell phone and listen to my music at very low levels without having to let off the gas to lower the db's inside the cab--for both freeway and daily driving applications. Conversations with people are troublesome, cause you usually want to floor your car now so you can hear the exhaust rumble WOT

The car was just dyno'd by Shiv in Portland. I had the chance to listen to both a MRT turboback, and one MRT with a magnaflow muffler attached; I also heard a stealthback with Oval Prodrive muffler, and stock exhaust, and an AVO turboback setup....all on the dyno. This means I heard them all in third gear, full boost to redline. The Vishnu was the smoothest and linear sounding exhaust out of all of them, with no raspiness at all. Many people said that the Vishnu TBE is one of the best sounding exhausts they have heard, it is actually quieter than an MRT while at WOT and idle in my opinion, and this is considered to be one of the quietest of the turbo backs on the forum....this is what suprised me.

One good measure is the girlfriend...I have a pretty cool girlfriend yeah....but an annoying exhaust system is usually a big problem with the ladies in the car (unless their 2F2F sluts right?). She does not think the exhaust is overbearing nor too loud. She actually thinks the car sounds a lot more fun than before. So that's a plus.

Freeway drone? Not existent. Went on a fairly long road trip with three people, and we all agreed that the exhaust does not drone nor become too loud while at cruising speeds. Keep in mind that sedan's do not drone nearly as much as wagons do, due to the larger interior space that can resonate noises much more (that is why subwoofer is much louder in a wagon than in a sedan, the acoustical gains are a derivative of the natural airspace the wagon provides)


2. Performance

With just the exhaust, Perrin Uppipe, and intercooler hoses, I was pulling 186 at the wheels on a Mustang dynometer (same one as cobb tuning). This is a very good number and proves the efficiency of the exhaust when it is used without engine management. With an EcuTek flash, I ended up with 203 at the wheels (keep in mind the dyno type, and it was a 96 degree day, and 85% humidity ). A gentleman with the stealthback (oval prodrive muffler instead of the stock can) was making 195 at the wheels on the same day (he also had the vishnu pulley's, which I do not have)....so that is saying something about the performance of the sig. exhaust. Shiv was able to extract much more power from it.

Feel free to ask me any questions...I will check the thread from time to time.

DP
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Old 07-07-2003, 07:31 PM   #2
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how much did that thing cost you? Aren't they upwords of 2g's? Do u think its worth the money?
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Old 07-07-2003, 07:40 PM   #3
Enigma76
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Quote:
Originally posted by vapo
how much did that thing cost you? Aren't they upwords of 2g's? Do u think its worth the money?
my thoughts exactly
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Old 07-08-2003, 07:53 PM   #4
well_armed
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http://www.vishnutuning.com/exhaust.htm

$1650+shipping

Was it worth the money? Honestly....yes....I believe so. It was less money than my computer, and that thing is a peice of crap that always crashes. It's all relative. Its pricey for an exhaust when compared to Turboxs and others out there, but it is one of the finest looking peice of craftmanship I have ever seen. Not too mention the ease of installation...very top notch.

dp
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Old 07-09-2003, 09:47 PM   #5
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Thanks for the info. I'm looking for stock looking and sounding turbo-back. I'm going to go with either vishnu or MRT twin tip. A couple questions for you, if you remember.

1. Was the MRT turbo-back single or dual tip? And did it have the optional resonator?

2. You mentioned the dyno of the steath-back/Prodrive car made less power than yours. Was it a TXS steathback? Was his car truly identical to yours except for the pulleys? Did he have the up-pipe and IC hoses and EcuTek. If not there's no comparison.

Thanks
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Old 07-10-2003, 12:31 PM   #6
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1. MRT single tip with resonator

2. His car was identical to mine except the pulley...he had the turboxs stealthback (which is their turboback exhaust sin magnaflow muffler) with a prodrive muffler. He had an uppipe and hoses as well.


dp
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Old 08-27-2003, 02:04 PM   #7
6Pack
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Question

Have any Vishnu Signature Series heard a regular Vishnu TBE? How would you compare the sound? Sig series quieter/deeper/louder/different note? Thanks!
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Old 09-05-2003, 01:58 PM   #8
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Default nice

Just wanted to say nice review. I've seen pics of the Vishnu exhaust, it looks very nice, good buy.

I have the TXS setup you mentioned; uppipe, stealth-back w/prodrive, Perrin pulley, and IC hoses.

For 8 WHP I think the ~$500 difference is pretty good for frugal people like me.

-Tom
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Old 09-09-2003, 10:37 AM   #9
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i love my sig series turbo back.

from across the street the pipe tip does NOT look big especially in contrast to the size of the magnaflow. it's only when you are standing right next to it that it is clear it is aftermarket. cops have not given me seconds looks.

once you learn to drive it you can keep it REALLY quiet.

I can downshift to 5000 RPM to blow the doors off some lane-jamming pudwhack WITHOUT alerting them to my intentions.

EVERYONE without exception who has heard it likes it.

my GF doesn't mind highway trips, there is no drone.

even my 76 YO MOM says it sounds nice, from outside AND inside.

dethrottling while in gear is soooo much smoother due to the reduced back pressure the car is much smoother to drive in general and sounds cool as hell when you punch it.

the only time it seems loud is when I'm driving around city streets (close-environment reverbration) with the windows down.

while I know other pipes maybe just as nice, I don't regret this decision at all.
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Old 09-16-2003, 09:46 PM   #10
sc00by
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do you have a sound clip of the vishnu TBE on your car or does anyone have a sound clip of one on a wrx .. thanks
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Old 09-25-2003, 02:27 PM   #11
reaubideux
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[edit]

aw crap... posted in teh wrong place

please ignore

[/edit]

Last edited by reaubideux; 09-25-2003 at 02:35 PM.
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Old 10-01-2003, 11:01 AM   #12
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bump for a great exhaust!
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Old 10-22-2003, 08:37 PM   #13
well_armed
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Default

Follow up review:

Miles Driven: about 8,000


Well, my instinct was right. The exhaust just gets better and better. It doesn't drone at all when the windows are down, up, or whatever... The volume of the exhaust is very quiet when first starting the car in the morning, and gets louder as you drive it for long periods of time. However, the noise does not ever get to where you just think it is too much to handle....it just makes you smile and want to gas it!


Gas mileage varies...by your right foot. Seriously though, you end up just gassing it hard even when you dont need to just to hear it....it is that good sounding. What is great is that it is very easy to modulate the volume of the exhaust. Once you get the hang of it, you can roll through intersections and pass people without anyone knowing its on.

Anything else people want to know, except for a sound clip? I will make one, however someone will have to host it....

Regards,

well_armed
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Old 10-22-2003, 10:44 PM   #14
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Thumbs up

I'm sooooooooo jelous, I really can't wait to get mine in the spring, along with a custom flash from VISHNU!!!

Props
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Old 10-28-2003, 03:01 PM   #15
well_armed
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Quote:
Originally posted by nitro
I'm sooooooooo jelous, I really can't wait to get mine in the spring, along with a custom flash from VISHNU!!!

Props
Yep, even betta. I got my ride dyno tuned by Shiv himself down at Matrix Engineering in Portland. Definitely the way to go...
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Old 10-30-2003, 09:06 PM   #16
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Good to hear, btw, does anyone know if I got new injector and pump with the flash would there be much difference with the stock turbo???
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Old 10-31-2003, 03:38 PM   #17
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i dunno but i think you can max the stock turbo out with the stock pump and injectors.
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Old 11-01-2003, 02:01 PM   #18
nitro
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really, so do you think that is part of their flash?
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Old 11-03-2003, 12:23 PM   #19
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dude, i'm just a consumer.

i picked my vender (vishnu) and now I follow their recommended path.

stage II (VF30 + Intercooler), 280 to the wheels. very smooth everywhere unless I lay off the throttle too fast after hammering it.
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Old 09-02-2004, 09:30 PM   #20
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have you heard just the turbo back, cuz thats what i was loking at so i could coupple it with their dp since it was divorced to keep the wastegate from intterupting flow, or does the sig series do this to.
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Old 09-02-2004, 09:35 PM   #21
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ignore my above post i just checked the web site and it has a divorced waste gate so it looks like thats what im going with.

dio you get ti with out the cat? and if so does your check engine light come on necessatating and O2 eliminator to pass emissions?
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Old 09-12-2004, 09:52 AM   #22
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Any pics other than on vishnutuning.com?? Thanks.


-Mark
www.MAPmotors.com
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Old 10-02-2004, 06:27 PM   #23
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i don't really have any complaints about the signature series now that it is on the car, however when i first ordered mine it took a little over a month before it arrived, the inside of the downpipe to turbo flange wasn't smoothed down at all( you know where the flange slips on to two pipes), and the welds looked like whoever welded them kept pulling the tig torch away incorrectly leaving little spots that look like holes but aren't. maybe i am just too critical, after all i'm a union pipefitter/welder and i make stuff like this almost every day of my life.

now that it has been on the car for about 20,000 miles and ever since i put it on, i'm am glad that i purchased it, and it does kinda give the almost stock appearance.

also, i hope that idon't offend anyone from vishnu, they are one of the best, and they make excellent products.
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Old 09-08-2005, 04:20 AM   #24
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Did you have to use the Vis Hangers?

I have a Sig series on the way (with Cat) and don't know what I should need? Aftermarket heat shield,Hangers,Gaskets,Etc.

It sounds like an Uppipe and AP or Xede should be on my short list!
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