Well, I've been doing a little research trying to figure out what I want to do so I can budget myself and start saving. I hate not having a goal lol. I think I know what I want to do and I'd like a little help from some of you guys that really know your sh*t to help me fine tune my plans heh.


I bought my car with the mods listed in my sig...believe me I wouldn't have upgraded the BOV so soon lol tho is does sound nice.

I plan to go down Vishnu's upgrade path to either Stage 1 or 1+ (not sure if doing cams is a good idea considering i paid for an extended warranty. I know the rest of the stuff would be cool with my dealer but not sure about that) with XEDE. I don't know anything about tuning and fuel maps myself so I know I won't be able to take full advantage of the XEDE's capabilities but I hope to learn. I assume there are off-the-shelf maps I can get ahold of.

I was planning on going with Injen's SES exhaust or the Fujitsubo Titanium. Should I instead get Vishnu's exhaust? Or does that not make a difference? What is the difference between Vishnu's standard and Signature exhaust components? Is it worth the price difference?

I also know that the 05s had a better turbo than the 03s. Is the 10.5 hotside enough to upgrade my turbo to the same as the 05s? If I do upgrade the turbo and do the stage 1 or 1+ what should my boost pressure be? Will it hold all the way to redline or drop off? Right now I boost to 20 PSI but it falls to 15 or so during the last 1500 or so RPMs.

Any supporting mods I may not have mentioned that I could benefit from along with the rest of this? Am I making any mistakes here? What about a boost controller? Will I need one or does XEDE control boost?

Thanks in advance for any help or advice you guys may offer. Heh I realize I sound like I don't know anything with all these questions and I had more but I did some searching and found some answers.

Edit: Oh ya and for rims, I would like to get some 18" rims with as wide a tire as i can fit without rubbing at all. Will 18x8.5 work and with what size tire and offset?

 

The main difference in the exhausts is build quality. You get what you pay for. And the XEDE is an awesome product, I have first hand knowledge of that from my own car and about 20 others I've seen tuned or are friends of mine. The Xede will control your boost for you, without need for a boost controller.

Take that HKS intake and Perrin BOV off and sell it to a member on here that will want it, get them to send you their stock parts and money as a trade. Then use the money to help pay for your new parts. You might even see if you can move the IC piping parts too, as they don't help much. However that might be more trouble than it's worth.

 

I would recommend Stage 1 for you if your worried about your warranty with cams. IMO, the tbe thing is a personal thing. I have heard good things about the Fujitsubo. Yes, a 10.5 hotside would put you at an '05 turbo. Your boost will depend on your octane, probably 22psi on 93oct. Boost will always taper some, but not at all like your seeing now. The Xede will control boost for you. No need for a mbc. Get Shiv to tune your Xede, that would be a good upgrade. Hopefully he will be doing mine soon when I get one.

 

Doesn't the HKS intake work better than the stock airbox?

 

yes, as long as your tuned for it.

 

Not unless your car goes speed density is it worth it, but since you already have it I guess it only matters if you could make some $$ off it to pay for your other mods or if you don't need the extra $$ then keep it. It won't hurt you any if you get tuned for it.

 

well its like this i HAVE the hks rs intake...for one....you will notie a immediate sound differece you can hear the turbo spooling where as you couldent hear that on the stock one...i love mine and wouldent go back for anything, give it a shot if you at all like me you will love it

 

That's nice, if you like to be able to hear all the power you are loosing. Listen up sonny, I do work over at a certain dyno shop on occassion, and I've seen probably in the neighborhood of 80 EVOs tuned. And the 1 out of 3 in that group that have an intake will pick up MAYBE 5 whp AFTER tuning. Other than that they just sound loud and ricey, and cost too damn much.

END OF STORY.

 

I know the fujitsobo is a really nice exhaust, when it comes to exhaust if its 3" from the turbo back all the gains are very similar, at that point it who you'd prefer to buy it from, looks, quality, and sound. Any exhaust you find on here will be good, I'd suggest taking a listen to some local evo's to see what you like, if your only going to be a stage 1 this is where most of your money is going to go.

I have an XEDE sitting in my garage I am trying to sell if your interested, I cant decide if I wanna use the XEDE of get a custom dyno tune. The 10.5 hotside will have a slightly slower spool than the 9.8 but will allow you to hold more boost til redline (I dont believe you'll hold a solid 20 but you will see a large improvement.) May I also recommend a Megan Manifold and o2 housing? If your doing the 10.5 hotside these pieces might as well be upgraded also. I think the mani is $250 and the o2 housing is $150, dont quote me on that though. The o2 housing will help offset the slower spool up time of the 10.5 and give you somewhere around 5-7 whp. The manifold I believe is good for about 10whp as is the 10.5 hotside. You might also consider an intercooler upgrade instead of cams, that should net you another 10-15whp depending on other mods.

Here is what my build should look like by may:

Mods in sig
AMS Intercooler
Koyo Radiator
AMS LICP
10.5 hotside
Megan Manifold
Megan o2
Tuning

Come to think of it I believe that Vishnu prefers that you use the stock intake with the XEDE, I'm sure you could tune for it but from what I remember they prefer the stock airbox. Just an FYI

 

OK im gonna have to get ahold of the stock intake setup.

Wouldn't changing the manifold be a problem with the warranty? i know that's not easy to swap back out for the stock one.

 

WTF are you talking about??? Please explain your theory on how you lose WHP on a tuned intake... Please school me there is an intake out there that claims a 20HP gain (im not saying it 100% true though)... why would one gain 20 and the rest lose HP (https://www.evolutionm.net/forums/sh...d.php?t=191810 ) . You got your facts screwed up. And the sound is YOUR personal opinion, it may not sound "loud and ricy" to everyone.

 

Stop giving this guy bad advice. why in the world would you tell im to take aftermarket parts off his car?? They in no way will be hurting his car after his tune. LICP is a recommended mod for the EVO. I can believe what im reading.

Dont waist your money on a new IC yet its not needed, but you should definently NOT get rid of the aftermarket parts you already have. thats some of the dumbest advice i have read on here yet.

 

Ok now in the other thread about the guys wanting the loud BOV i realized that i should probably do something about mine. It's cool to show off and i dont mind it but i do want something that wont hurt my performance. Cuz i think the jolt i feel when letting off the gas a certain way isnt too fun and it may be causedby the BOV. The perrin BOV i have can be used with the factory recirc hose...unfortunately I don't have that. Does anyone know how i can get ahold of that?

 

This is based on what I've seen on dyno tuned cars. I didn't say the intake would loose power when tuned, but it would loose power when un-tuned. And they sometimes do loose power in different places in the power curve even after being tuned. Not that matters, because a lot people are only concerned with the peak HP number.

And it is worth it to rid yourself of parts that make 1 and 2 whp, if you can get enough money out of them to buy a part that will make 30whp. Like say a set of cams / cam gears. That's if $ is a concern for him, as I had stated earlier. Because if it isn't then don't bother taking the stuff out.


He wanted opionions, not thread jacking.

STFU noob!

 

As far as the BOV is concerened (spelling?) a cheap alternative if you cant find the hose to make it rec. would be buying a MR DV BOV. i made a thread in the WTB section and bought one for 75 bucks shipped. Then after you have that sell the perrin for around the same price and you have a perfectly running car.