ahh ok, now i get it.

thanks!

now just gotta decide on what to do

 

You also switched intercooler and piping as well.

 

Yes changed from AMS to ETS, Same size piping and I have not seen large WHP gains from IC piping no matter who the manufacturer is. Also the ETS FMIC is now 3" vs the AMS 3.5" FMIC.

 

The vendors who ARE making O2/DP combos have yet to support their products with solid dyno numbers. I wish AMS, ETS and the other vendors selling these would step up to the plate and get numbers for their products.

 

I have researched this and to be fair to the vendors it's hard for them to post "Solid Dyno Numbers" due to all of the different configurations we are running. However when you see Dyno numbers READ the fine print. For example if you see "Manual Boost Controller set at the factory 21 psi on car X and it produced a 45 whp over stock" that means the following:

1. Replacing ONE part at a time to Dyno components will give you the best results and can also be misleading. If you add intake X with advertised gains of 45WHP over stock and then add TP Y that has gains of 15WHP over stock you will NOT see 60WHP over stock. When ONE component is added to a stock you will see the biggest gains. Adding them together will ONLY add incremental amounts of WHP and we all know tuning plays a big part in this equation.

2. From what I understands if you add a Manual Boost Controller to you Evo X it will hold more peak boost to redline in turn producing more power.

3. A Bone Stock Evo X generally has a lot left on the table from a tuning perspective and you could make gains like this or greater without even buying an intake.

Summary:

From looking at the web sites

AMS - Does advertise WHP Gains for EACH INDIVIDUAL PART on a stock car ONE part at a time which is accurate when understood correctly.

ETS - Does not really advertise WHP Gains on their site but Took a different approach by going to the Dyno and doing a base pull and then adding one a part making a pull adding another part to that same setup making another pull in turn ending up with an Evo X that had most if not all of the bolt-ons added to the car simulating what you would do when building your Evo X giving a complete number for all parts added together.

https://www.evolutionm.net/forums/ev...-specials.html

 

The thread you link to has lots of dyno graphs.....unfortunately I do not see any them which include an O2/DP in the mod list, much less single it out to show gains.

AMS is usually such a solid company - I can't see why they are avoiding taking a mildly modded/tuned X and swapping in their O2/DP and testing for a gain. How hard would it be? I have to assume they are covering for the fact that their DP has very minimal gains, if any.

 

Who knows anything is possible. At least with the ETS Dyno graphs you can see how much each part made when it was added to the setup like it would be when you build an Evo X (NOT testing each part individually on a stock Evo X).

 

AMS tested their pipe and reported 12-15 whp gains. See post #93 in this thread:

https://www.evolutionm.net/forums/ev...n-pics-13.html

 

I read at least 2, O2 downpipes have cracked on this forum...factor that in

 

thats my worry also car this car is raced a LOT. well everyone i am going to bite the bullet here to get firm figures. i already have dyno numbers for my car currently and i had intentions of doing downpipe , turbo , retune , injectors and fuel pump ,clutch and such all at once , however i really think the community deserves FIRM answers on if this is a worthwhile upgrade for the full bolt on evo x (i do have cams also). So i am getting this beast:

http://www.maperformance.com/map-sta...e-ss-evox.html

from my man here:
https://www.evolutionm.net/forums/me...hriscarey.html

cause he is just as interested to see the gains as all of us are plus he assures me the downpipe/o2 they have is the best on the market and will stand the test of time and abuse i can throw at it

 

I am local to MAP and they asked me a few times to test it out, I haven't been ready to try it though since I didn't want to pull my downpipe and all that stuff until the new turbo was going on.

Good luck though, looks like a nice piece.

 

Thank you. Complaint withdrawn!

 

https://www.evolutionm.net/forums/6199917-post139.html


a couple things to note (obviously this was done a long time ago so they were trying different turbos and all kinds of stuff) So just saying hey 12-15whp isn't really fair cause its not normal pump gas or stock evo X turbo which i think is the most relevant test for most evo X owners.

Boost: 24psi
Gas: MS109 for testing purposes.
Turbo: Turbochargers.com 50Trim Compressor in the stock turbo

 

I'm glad to be a part of putting this question to rest sir, I'm anxiously awaiting the results

 

I emailed PErrin to ask why their exhaust was only offered with a regular downpipe, as opposed to one with an 02 housing. They said this:

"During the development of that part, we tested both options. The O2 housing replacement, made no difference in the HP gains from the DP replacement. So to lower consumer cost it was removed."