Just bought a SRT4 2004..thinking about adding the following:
1. AGP WGA
2. Stage 1
3. Mopar cat back 2.5

Based on what I have read the AGP should give me 10 more HP, the stage 1 10 more HP and the mopar cat back approx. 5 more HP putting me at about 257?
Does this HP increase sound correct to you guys?
You think this is good for a .5 reduction in my quarter mile?
What should the max PSI spike should I set the AGP to before it starts to freak my PCM?
These seem like simple (other then the AGP install) to bolt on and see major HP increases ...am I missing anything.

Sorry for all the questions I am new to the SRT and just need your expert opinions!

I am also going to add motor mounts, short throw shifter, mopar blowoff valve.

 

Is no one interested?

 

Well,,,you do seem desperate and no one else is on here, so sadly, I'm all you got. But hey,,,this IS my chance to shine! But first, a disclaimer:

"This written notice is to inform you that I don't know **** about cars and even less about modding them. However, in an effort to be of assistence in showing you that I do care about your concerns, I am offering advice, however inept, free of charge. It must also be stated that much better advice will come to your post if you choose to wait longer."

Now,,,with that being said, here goes:

The APG/WGA wastegate is an excellent choice. I think it works best if you have a map clamp that goes with it, though. They work in concert with each other.

The mopar BOV I have heard mixed reviews about. Some say it leaks terribly, but others say that if it is installed right, that it will perform flawlessly.

The mopar/borla exhaust is a good exhaust, but many people feel that you should have a 3 inch exhaust. The exhaust you are speaking of will be fine if you do not want to exceed 300 horse power. If you someday want to exceed that, then you probably should get the 3 inch exhaust.

Stage one is a fine choice. If you go for stage 2, then get the toys! (learned that from posthonda)

But,,,,for how you are staring out, you are doing a fine job. Look into getting a Mad Dog STS along with motor mounts.

Again though,,,,don't be in any hurry and check back here later, because the real car people will be here then. I'm kind of like a substitute teacher.

 

the agp wga is a good choice. you might want to think about getting a boost controller (i would suggest an electronic one over a manual, but the manual will do the job and is a lot less expensive). using these in conjunction will better allow you to tune the boost to the levels that you want. on stage 1, a safe bet is spiking 17/18 and holding 15/16.

as for the map clamp, i would not personally suggest it. i am not a fan of map clamps and am concerned about the long term use of them. they do work, however at what cost? they should also not be used unless you have some sort of engine management system so that you know what's going on. a emanage or powerpack are both good options for that.

the borla 2.5" exhaust is fine, however you should think about what your long term goals are for the car. going to go big turbo? want to do 300 on the stock turbo? or will you be sticking with s1/wga/mbc? if you're only going to mod this far and leave it there, then the 2.5" is a good choice. however if you plan on running significant hp at any point, save your money and get a full 3" turboback (or do a combination set up of o2/dp/catback).

i hate the mopar blue plate. it's a boost leak and nothing more. now many on here will disagree with me and have had different experiences with it. this is only my opinion. if you want a bov, spend the money and get a real one.

this set up (s1/wga/exhaust + mbc) will be able to get you a mid to low 13s time, assuming you can drive the car. not everyone can. don't fool yourself into thinking that you're going to do these mods and go run a 13.3 your first time out. probably not going to happen. with some practice, yes you could do it.

i would honestly suggest you first get out to the track and get some baseline runs. see what you can do with it stock. get used to the car. this is not an easy car to launch and it does take some getting used to. then once you have it down in stock form, start modding and see what happens. you'll never know how these mods improved your times if you don't know what it did stock.

 

wordslayer - you've come so far grasshopper .

and Listen to what PSI Chick is telling you, srtpitbull - spot on.

 

PSI and Post:

Okay,,,I understand about not using a map sensor, for fear of not damaging the car. However, if a guy just put on the AGP WGA would that, in and of itself, make the car faster? You know,,,without the map sensor? And,,,,,,is changing the AGP WGA pretty simple? And,,,,,if you did change the AGP WGA, do you then have to make adjustments to it, or could you just install it and go....kind of like a plug and play thing? Was just thinking that this might be something that could make a pretty big difference while not being very involved.

Oh,,,,just changed my oil and put in mobile one 5-30. They charged me 59 dollars for the oil change.....gulp. That stuff is like expensive!!!

 

Thanks everyone for the help!

I dont plan to race this car just add more speed.
I want to keep primarily stock with just some upgrades as it is a daily driver.
The WGA as I have read will esentially strenthen the spring associated with the WG and in turn not allow it to open and drop boost as quickly correct? So the key benefit ( correct me if I a wrong )is the ability of the wastegate to maintain boost like PSIchick wrote "holding of 15/16."
This is essentially a professional "spring modification" correct?
My question is how does the PCM react if spike does not drop as it usually expects ...does it try to throw timing or other negatives?
My question I think now that I wrote it out is similar to wordslayers...without a MAP fooling the PCM will the PCM react negatively?
I have read by the way wordslayer ( I am a idiot but this is what I read) that the AGP wastegate is a bear to install due to the heat shield bolts also after it is installed you need to adjust it to get the spike and hold. This is why PSIchick recommended a boost control I think.

By the way I heard that the stage 1 2 and 3 PCM do not have the sentry key in the programming so do you lose the security benefit when you upgrade to a stage 1? Also read that the street legality in stage 2 w/toys and stage 3 w/toys is questionable however with stage 1 you are OK ...

Sorry for all the questions !