it will not prevent taper but it will slow it down enuff to make a difference. on the '03 i spike the turbo to 27psi & it tapers to 23-24 by redline. i also have the stiff spring in my Hallman & have the WGA turned all the way down to where the threading stops. i removed the nut underneath the turnbuckle. the wg spring is under considerable more stress & if it breaks, i'll just get another one from Garage HRS...

 

Damn a lot of responses. LOL. First off they do make a wastegate actuator for the IX from forge. I am a forge dealer. I put a lot of there parts on my car for shows. Thats the reason for the valve. The actuator also. But the actuator will benefit from. You guys are wrong about the blitz filter. The ones with the stainless steel mesh cone filter. Its the greatest thing ever made. I have had dyno pulls thats show in increase over a K&N or any other oil based filter. Thats a definate for me. Bes bang for your buck I think. The turbo manifold is not only for a little more horsepower, but for looks as well. The stock one is ugly. A hard pipe kit is not a waste of money also. It gets rid of the crappy rubber hosing that expands under high boost. Plus the diameter is bigger so it allows more flow. Can't go wrong with it. Some of you would just spend that money elsewhere. The HKS high power is expensive, but its the only decent sounding one that is a little bit loud, and has a tone, but a big hole in the pocket. Most exhausts for this car are just a big rice can.

 

Mike@Forge himself said there is no WGA for the IX, so I'm not sure what you're talking about. I am sponsored by them and speak to Mike often. I even have communicated with folks in the UK about other issues, so I have a little bit of a tie-in, but I haven't heard of them recently releasing a IX WGA. Is it something that you got but that isn't on the market, or did it get released without an announcement? Could you show us where it is available?

Btw, I don't know how you got so convinced about all those parts being good, but hey, it's your car. I've noticed that show car guys have a little trouble seeing the reality of what mods make power, but as long as people who see their cars actually think it's fast, then they're ok. The most disappointing thing is how you are telling US that you're right and we're wrong after coming here as a newb and asking for our opinion. You obviously haven't spent any time here learning what does and doesn't work on the Evo while at the same time being convinced of what works based off other cars. You're especially wrong about the exhaust, so you might as well stop trying to justify buying HKS and just admit it - you're buying it because it's got the HKS name on it. Enjoy your mods, but don't expect much in terms of power gains for all the money that will be spent.

 

Looks Good.

 

HKS Titanium exhaust [too much money for too little but overall good]
Helix downpipe
Helix test pipe
Forge silicon turbo inlet hose ***dont need it
Blitz filter *** its OK!****
Forge Wastegate actuator **dont need it
Forge Unos boost controller
Forge RS DV your stock one is more than adequate
Helix hardpipe kit you dont want these
Megan turbo manifold
Jestertuning on the dyno **dont know much about em

 

I understand the "show" part and you want some nice shiny peices. Thats fine. As for the intercooler piping kit... nah bro, wrong. The helix is 60mm in diameter and is a negligible difference from stock. The lower pipe is OK but you can get just that somewhere else for cheaper. If you want a REAL upper IC pipe, get a mini battery and get an AMS or Buschur straight upper IC pipe which is actually 2.5 and cuts more bends and elminates lots of the piping. Dont waste your money on the Helix. I did, I regreted it, I know have the Buschur upper IC pipe. Looks 10x better too btw, thought youd like that since your into looks under the hood.

Also, Ive yet to see that Megan manifold make any power over the stock mani. The stock manifold ported is the way to go. You can get a polished heatshield to hide it and that looks sexy under the hood too.

Im a bit perplexed at why you think the HKS is the only descent sounding exhaust... and also how you can say most are rice cans? Call me crazy but the canister type (HKS) is the most popular style muffler for the EVO. The Greddy, Apexi's, Blitz, RSR are all very similar in style to the HKS (apexi is almost 100% indentical). The HKS does sound good I know, but its certainly nothing special, and for way less money you can get something that looks just as nice if not better.

 

Just go with what you like if you dont want to wake up the neighborhood stay with HKS i did nice sound.

 

First off I am not hear to start battles and I do listen to advice. I know that intakes make power on a tuned evo. Thats why I want to change it to the one I want. People have different views on intakes here, but every shop that does tuning that I talk to tell me to do an intake over a K&N drop in. I am not saying the HKS is the greatest exhaust at all. I find that it looks the nicest to me and that it has a nice tone. Some exhausts I have heard sound bad. I am a V8 guy so you guys have different tone preferences than me. Also about the Wastegate actuator. I have on my price list 2 different Evo actuators for forge. One is for the IX. I have not yet asked them about it, I just assumed they already had one made if they listed it with a part number. I appreciate the advice on the hardpipe kit, I do not know much about those. The only one I have installed on an Evo was the injen, and I was not impressed. I will probarly end up going with a smaller battery and doing the AMS. Like I said earlier the valve and wastegate are mostly for show.

 

That drop in K&N is good to 400whp. If you're not going to make it there, then the money might possibly be better spent elsewhere. However, I do admit that a ram intake looks pretty sexy compared to the stock one.

Good luck!

 

Trust me forge does not make a evo IX wga yet, in fact i will have the first one

 

1. If you want looks, then get the expensive exhaust. There are many other cheaper ones to get that will improve power for less money.

2. Does the Helix DP fit on an EVO IX? I remember that the Helix had fitment issues on the VIII. Did they fix those issues? Buyer beware!!!

3. You do not need the turbo inlet hose

4. Don't mess with your wastegate. The 9 has a very good turbo set-up. Leave it alone.

5. I am told that pipes are for looks, they do not give you much HP. Just change your clamps to T-clamps and if you want change your turbo hoses to silicone hoses from Samco.

6. If you have a good flash, I really doubt that you will need an MBC.

7. Leave you stock intake alone. Just get a drop-in filter.

8. The stock DV on the 9 is great. Leave it alone. It is the same one on the JDM Evo that all the 03-05 Evo owners buy to replace the plastic one we have.