Hi all, I'm new to the forum and I just got my 2006 STI. I am currently looking at all the mods that everyone else has done to there cars. I was wondering what everyone's thoughts are on Vishnu. They seem like they are really good. The stage 1 I'm looking at(the "370 hp kit) says middle 12's. I like the fact that you can get the xede computer. So is this the company I should go with? Or should I go with say greddy for exhaust, injen for the intake, somone else for the computer etc... just make my own "stage 1" kit. Do you think that vishnu's other parts are good, like the clutch and flywheel, the coilovers, or would you look somewhere else? I've always thought that tein was the best for suspension. Or does it come down to preference? Basicly, I'm looking for the best parts, what would you recommend? What have you all had the best luck with? Basicly, I would like to be middle to low 12's and lowered. And of course, a nasty super-sequintal. Sorry about the length. I've loved these cars ever since 2002 body style, and I am so happy I finally got one! Thanks all in advance. I'm sorry if this subject was beat to death already, but I guess I just wanted to know your thoughts on the quality of Vishnu.

 

Hi there, welcome to the i-club forum and congrats on your new 06!

Here is my opinion. Vishnu follow the right path as far as the mods that you purchase with their packages, I don't buy their claims as far a horse power, 0-60 times and 1/4 mile times. I do think that Vishnu uses good parts in the packages though. PE injectors are good, Forced performance turbos are good (I run an FP Red turbo).

Here are the steps you will need to take to get hp on a STI.
1) Catback
2) Downpipe
3) Intake (not completly necessary but will help by providing more air flow at later stages)
4) Means of tuning (EcuTek, U-Tek, Cobb, etc)
5) Injectors, fuel pump, fuel rails.
(You now have 270 to 285 whp on a mustang dyno) This is considered to be a stage two STI.
6) Turbo upgrade
7) Larger TMIC or FMIC
(You now have a car at 330 to 380 whp on a Mustang dyno) WHP depends on how big of a turbo you go. Bigger turbo = more lag but also more power.

Now you get into different issues like oil coolers, radiators, tranny coolers, clutch etc...

My biggest fear would be with their ECU reflash. They say, "As with all of our ECU Reflash-based power packages, you will need to mail (or bring) your ECU to our Danville, CA facilities for the re-flashing of its ROM file." In my opinion, if your going to pay the money for a reflash (you will have to) pay the additional money to put your car on a dyno and have a pro tune your car. If you send it in, they assume that your car is the same as all the others (its not) and you will get a off the shelf tune that could gernade your engine.

my 0.20

 

just like what depdivr said...follow his steps.

just with downpipe and custom ecu tuned such as (cobb protuner, ecutek, txs utec. etc) will get your to around 280-310 whp depending on who tunes it. This also means you could possibly be running high 12's, If you are a good driver!

ecu is the key for tuning wrx and sti.
i recommand either cobb accessport protuner(custom tunes) or ecutek for ecu. they are pretty much the same thing, but with cobb you get a console that you can store and upload new maps without carrying laptop. It comes pretty handy once a while. cobb is about 550(accessport)+400(protune-custome tune) and ecutek is about 700(ecutek license)+200(custom tune). so whichever you like the best. And remember not everybody can tune ecutek or protuner. So find a shop around you that can tune your ecu.

since you are looking for 350+whp. you need to get bigger turbo such as 20g, FP Green, and sr55. first you need to have what's already listed.
these turbos are known to get your around 350-400whp. however you are gonna need better cooling system. some people are ok with bigger tmic, but fmic is recommanded

just remember, once you go over 400whp mark, you are gonna need to rebuild your motor, or else it will go "BOOM!" i guurantee you that you are gonna want to go more hp later on.

good luck

 

Hey thanks guys. So am I gonna need 350whp to run middle 12s? So basicly Vishnu is just as good as any other company out there, right? Wether I go with HKS, Greddy, or Vishnu for my exhaust, its gonna be the same. What are your thoughts on the Xede for a ecu? Thanks alot for the help guys.

 

I just did the 370 hp kit from Vishnu. So far, very good results, although my Perrin twin tip tbe is very loud. No problems. Am thinking of going to the next stage with the 400 hp kit, which adds the FP green turbo, PE 850 cc injectors, and the Walbro fuel pump. However, that's another $2500 or so including tune for about 30 more hp. Not sure if that is worthwhile, considering I use the car as a daily driver on the street

 

The Vishnu is 370 hp at the crank right?

 

If i were you go with the Vishnu...thats my next step...mid 12's at quarter mile... proven fact by an i-cluber here in Hawaii who is running Vishnu Xede... just my 2 cents...

 

I have been looking around for some parts for my 06 sti. I really want to make sure that the only changes to the 06 STI are cosmetic. From what I have read, all parts that fit an 04-05 STI will bolt on to a 06. I want to order the HKS supersequintial, and I really like the looks of the Carbon TI exhaust they make. But then I like the Vishnu kit, so I wouldn't know where to get a downpipe and a ecu. I'm sorry for asking another newbie question. I really want to say that I love everything about this car. Its truly one of a kind. Thanks again guys, I really appreciate any info I can get.

 

I am 99% sure that all of the 05 parts (exhaust, injection, intake, turbo, IC, etc) are all the exact same as 06. To be perfectly sure, call a Subaru Dealer/Service Department and ask them.

 

Depdver - In response to your question, you are correct. The Vishnu 370 hp kit is crank horsepower.

What's your opinion about only getting another 30 crank horsepower by upgrading to 400 hp crank hp kit by purchasing FP green turbo, 850 PE injectors and Walbro 255 fuel pump. It costs another $2800 or so including re-tune. Sounds like law of diminishing returns for a street car driven daily?

 

I think the package is great. The FP Green is a great turbo if your goal is between 320 and 330 whp. If you wan't more don't get it, for about the same amount of money, you can get the FP Red turbo. This can comfortably take you to 480 whp IF YOU BUILD THE ENGINE. If you want to keep the internals stock, you can push the car up to 370 to 380 whp on 93 octane. It has a bit more lag, full boost is achieved at about 3700 rpm as compared to 3400 or 3500 with the green.

Basically, you need to set a goal and build your car for your goal. Otherwise your parts won't match up.

Don't assume that all these parts your putting together will make the car a super car. AT THIS STAGE, TUNNING IS MORE IMPORTANT THAN THE PARTS!!!! Get a great tuner, hopfully someone who works with Suby Race Cars. I do all my tuning with PDX Tuning - they support 3 suby rally cars.

Finally, invest your money in YOU! Drop some cash on driving lessons at the track, you will begin to understand the true limits of your car and you will be able to drive it faster and safer than what any car part will ever give you!

 

I would get a EM first...the Xede was the shiznit a few years back...but not anymore....

#1 Overpriced....@ $1000+most flashes cost $650-700 TUNED...even the AP tuned is alot less

#2 More prone to failure then a AP or a flash....hardware failure that is.

#3 Won't hold as many maps as a AP....Xede holds 2 maps...AP 10.

#4 Not as many guys will/want tune a Xede


Most TBE exhuasts are close to the same in power levels as long as you get a good downpipe.....(Helix,TXS,Invidia etc)



On well tuned car you should see a gain of 40-50 whp when u upgrade to a green and a better intercooler....both on pump and race gas maps.

 

Depdiver - Thanks for the input. Sounds like good advice. However, you mentioned 93 octane. I don't know where I can get more than 91 octane in N. Ca, unless I go to Infineon Raceway (10 miles away)

Mark - I had my ECU reflashed by Vishnu, and had the '05 STI tuned by them (Don't have Xcede) and added tbe (Stage 1 kit). Vishnu claims going to Stage 2, by adding FP Green, 850 PE injectors and 255 Walbro fuel pump. only adds 30 crank hp to the supposed 370 crank hp I got with Stage 1 kit. The Mustang dyno showed approximately 270 whp after Stage 1 kit. I'm questioning whether additional 30 CRANK hp is worth $2800.

Do either of you two have an opinion as to whether it makes economic sense to spend the addtl $2800 for 30 crank hp, or could the money be better spent elsewhere?

Thanks to both of you for your expertise and input!

 

Don't worry about it, your tunner will either richen up the mixture or back off on timing to elude detondation. You might loose 10 whp.


![/QUOTE]Mark - I had my ECU reflashed by Vishnu, and had the '05 STI tuned by them (Don't have Xcede) and added tbe (Stage 1 kit). Vishnu claims going to Stage 2, by adding FP Green, 850 PE injectors and 255 Walbro fuel pump. only adds 30 crank hp to the supposed 370 crank hp I got with Stage 1 kit. The Mustang dyno showed approximately 270 whp after Stage 1 kit. I'm questioning whether additional 30 CRANK hp is worth $2800.

Do either of you two have an opinion as to whether it makes economic sense to spend the addtl $2800 for 30 crank hp, or could the money be better spent elsewhere?

Thanks to both of you for your expertise and input![/QUOTE]

Worth it? Thats an economics question. Is it worth it to you? I won't even go into how much hp is worth to me... its really sad. Will you go faster, yes, a better investment would be driving lessons. You wouldn't believe the amount of performance that is hiding in your car... you just have to learn how to get to it.

 

Depdver - Thanks for the input. I have had driving lessons previously, but could certainly sharpen my limited skills. I'm balking at the $2800 additional to upgrade the turbo, fuel pump and injectors for now, but may reconsider it down the road.