Is it just me or does exhaust sound clip for the sig series sound a bit lackluster? I really do like the look of that exhaust though and espescially that dp, but it seems to me that Vishnu tuning parts are a bit pricey and what is stopping me from buying this exhaust or the whole stage 0 kit is that their tuning stages do seem to limit the users options for other parts, even the small stuff like intake and bov for that matter.

 

I don't like, it, they charge $1000+ and use a Magnaflow cheapo muffler. It also has unnecessary bends, look at all the restriction stoo, but the 02 eliminator is great, check out the buschur unit, no BS, just strait flow.

CATBACK


And the whole DP and cat back





I like the DP but the 02 can be upgraded on the Buschur unit.

Buschur has a Complete turbo back system, with no restrictions what so ever, strait back, with a custom designed muffler, for $725.

Whats the big deal? They ran a 12.4 at 112+ with a MBC/SAFC, and an intake.

 

Adding an O2 sensor bung can be done easily with a nut and a welder. It shouldn't cost more than a few beans at a local shop either.

I happen to think the Vishnu turbo back looks quite sharp, and I in no way mean to trash talk, but the price would be prohibitive to me.

 

Sound clip killed it for me... right after the sticker shock... AMS still sounds the best that I've heard... This is the area where this old man will give up some whp for a pleasing mellow note. It's sad when the music has gotten too loud...

 

Wow, thats the first actualy turbo-back exhuast that I've seen for the Evo8. Thats a really beautifuol peace, good for alot of gain i think.

 

Uh.. no it's not. You might want to brush up on your Hindu mythology

Cheers,
shiv

 

I was under the impression that Shiva was the destroyer and Vishnu was the creator.

EDIT: Yeah, it's totally OT. So sue me. Time to go see whether I was right or wrong.

I was close.

Vishnu

Shiva

Ok, back on topic I guess.

 

You're more than welcome to use a BOV or Intake with any of our kits but we've tested them to make absolutely no power and, in fact, induce MAF misreadings which will detract from performance. This applies to any application, from us or anyone else. But we're just more vocal about it as we're sticklers for things like sensor precision and drivability.

shiv

 

At first, no. But recent testing of our non-Sig Turbo-back has revealed there to be gains from it. It is currently under development and will be quite trick. The downside of the turbo-back (compared to regular 3" downpipe back exhausts) is installation difficulty and slightly more exhaust noise. The upside is more power and better boost response. Fully polished with cat, resonator, o2 housing, flex joint, etc,. I didn't expect anyone to think it was overpriced.

I suppose a cat-less, resonator-less, flexjoint-less version of the turbo-back could be sold for ~$300 less but would smell, sound like a dying hippo and fit poorly. So we're not going to make it.

Regards,
Shiv

 

BTW, shiv do you think you could give us a few hints about whats in store for your staged upgrade path for the evo? I think it would really boost consumer confidence if we had some idea of your next stages. I don't recall where, but I definitely read that somebody spotted 290 whp figures on your dyno for stage 1, throw us a bone...

 

Last time I checked, my RMR exhaust had the 02 sensor bung already there. The O2 sensor went right in - no troubles...

The exhaust looks really good Shiv. I think right now the exhaust is the most competitive upgrade for the Evo. So many good ones out there...

 

290whp on our dyno? I wish That would be nearly as much as a Porsche 993 turbo Not enough turbo capacity for that kind of power.

Stage One will add a downpipe and pre-set cam gears. The XEDE will be pre-programmed for the mods and will come with two maps: one for pump gas and one for race gas. Compared to the pump gas map, the race gas map will run more boost, less rich AFRs and more timing advance. It will make considerably more midrange grunt and noticeably more top-end power.

On our dyno, the pump gas map will make around 235-245 wheel hp. The race gas map will make 255-260 wheel hp which is just about the limit of the factory turbo.

For comparison's sake, the WRX that ran 110+mph traps speeds at the last SCC mag comparison test only put down 255 wheel hp on our dyno with considerably less midrange torque and slower boost response. The EVO should eclipse that quite easily on race gas.

There will be other, juicier versions of Stage 1 which could include camshafts and/or an intercooler upgrade.

Stage 2 will be a complete turbo upgrade, tubular exhaust manifold, bigger injectors, upgraded pump, ext. wastegate, etc,. It is currently being worked on now.

No idea on Stage 3 but I suspect it will involve a stroker kit and a larger exhaust housing A/R.

Hope that gives some insight as to our future plans

Cheers,
Shiv

 

Great info,

I am really starting to take a liking to your upgrade path. One last question though, does the turbo-back exhaust need a seperate xede download or is it the same program as the sig. series exhuast? and are their any plans on incorporating your tubo-back into one of your stages? And just how much of a difference does the t-back make compared to the sig. series?

Thanks

 

Will the dual piped downpipe be available in a version that will bolt on to the stock catalytic converter?

I can not spend $1000 for the complete system as I do not have the $$$ right now. But I could probably swing a few hundered for a downpipe. It sure would be nice to get the dual piped downpipe so that I will not need to replace it later, when I get enough to buy the rest of the exahust....

Granted, a nice downpipe with stock cat and cat back exhaust will not yield as much power as the complete system, but hopefully it would produce some spool up gains. Also, people could buy the downpipe and then bolt on any other cat back system if they so desired.

 

Time to sell the children into slavery!!!!!