Difference between Stage One and Two

[masteroc]

So i tried searching for this, but unfortunately the way its most commoly spelled is "stage II" where the II is under the search limit, so i figuered i would spell it differently for anyone who searches in the future for this topic... Anyway, the title basically sums it up, with APR (assuming i get an exhaust) what is the difference between stage one and stage two? I hear that stage two is more aggressive, but how much more and what exactly does that mean?? I like how my car drives with just stage one now, but will i be missing a lot not to go to stage two if i get an exhaust?

Thanks!

[quattrosaint]

So i tried searching for this, but unfortunately the way its most commoly spelled is "stage II" where the II is under the search limit, so i figuered i would spell it differently for anyone who searches in the future for this topic... Anyway, the title basically sums it up, with APR (assuming i get an exhaust) what is the difference between stage one and stage two? I hear that stage two is more aggressive, but how much more and what exactly does that mean?? I like how my car drives with just stage one now, but will i be missing a lot not to go to stage two if i get an exhaust?

Thanks!

its more agressive, I felt the difference from the change over. I was happy with stge 1 but my goal is mid 13's so I had to do it

[era]

What I want to know is, is a test pipe required for stage II setups?

[tivs31]

yeah I'm kinda curious about that as well?

Is stage 2 the following:?
- intake filter
- fuel pump
- test pipe w/exhaust

? is there anything else I'm missing? or is the fuel pump even part of the stage 2? and is the test pipe crucial in the stage 2 or would a downpipe back exhaust still work as stage 2, lol

The apr site is kinda wierd about it as well, not really straightforward.

[masteroc]

its more agressive, I felt the difference from the change over. I was happy with stge 1 but my goal is mid 13's so I had to do it

Thats the only thing, i'm not really looking to get really low 1/4 mile times. I just need a good daily driver that can give me some good power. How much more aggresive do you mean? I'm trying to look at this practically because ill still have to be going through traffic and such every once and a while, but i still want to be able to open it up on the highway, etc.

P.S. I kinda rethought my question and i think it would be better put as this: if i get an exhaust, do i have to do stage two to make it worth it, am i hurting the car (does stage one not handle an exhaust well?).

[quattrosaint]

Thats the only thing, i'm not really looking to get really low 1/4 mile times. I just need a good daily driver that can give me some good power. How much more aggresive do you mean? I'm trying to look at this practically because ill still have to be going through traffic and such every once and a while, but i still want to be able to open it up on the highway, etc.

P.S. I kinda rethought my question and i think it would be better put as this: if i get an exhaust, do i have to do stage two to make it worth it, am i hurting the car (does stage one not handle an exhaust well?).

to answer your restated question: no you dont have to go to stage 2 to make an exhaust worth it. Stage 1 handles it fine. To the person who asked about the test pipe. You do not need a TP to run stage 2 software, however stage 2 software will delete the CEL caused by the TP and Stage 1 will not.

[quattrosaint]

yeah I'm kinda curious about that as well?

Is stage 2 the following:?
- intake filter
- fuel pump
- test pipe w/exhaust

? is there anything else I'm missing? or is the fuel pump even part of the stage 2? and is the test pipe crucial in the stage 2 or would a downpipe back exhaust still work as stage 2, lol

The apr site is kinda wierd about it as well, not really straightforward.

Stage 2 is just new software and an exhaust. The other stuff just enhances stage 2. I consider a fuel pump stage 2 plus.

[fD3S]

My understanding is that all stage II software does is:

1. Prevent the CEL from coming on due to having a test pipe and/or exhaust. (fact)
2. De-tunes the car to prevent boost spike and therefore preventing fuel cuts. I hope I am wrong, I have a test pipe waiting to go in, but if the stage II software is less aggressive for this reason, I won't install it. We need an answer from someone that knows for a fact.

[quattrosaint]

My understanding is that all stage II software does is:

1. Prevent the CEL from coming on due to having a test pipe and/or exhaust. (fact)
2. De-tunes the car to prevent boost spike and therefore preventing fuel cuts. I hope I am wrong, I have a test pipe waiting to go in, but if the stage II software is less aggressive for this reason, I won't install it. We need an answer from someone that knows for a fact.

1) correct about the CEL
2)stage 2 does not detune. Stage 2 generally brings on fuel cuts due to more agressive fuel mapping

[masteroc]

What exactly does "more agressive fuel mapping" mean?

I have also heard about the fuel cuts, i assume that to correct this you need a new fule pump?

[RedS-line]

(my theory) i think that the companies are intentionally vague about stage II because stage II is more about complimenting your mods then actually adding power. the map may be more aggressive, so im guessing you might see a few more peak hp/tq but then again just adding an exhaust or test pipe would do the same anyhow. throttle response, turbo spoolup, etc. might be better but i question how much more power youre really gonna see. I mean, what's the difference between revo stage 1 running full boost with the select plus switch and stage II? Once again, this is just theory; Ive never experienced stage II so i could be way off here...........

[VZWalex]

1) correct about the CEL
2)stage 2 does not detune. Stage 2 generally brings on fuel cuts due to more agressive fuel mapping

^^ TRUE

Stage 2 is a more agressive program.. generally you can upgrade to stage 2 with a Fuel pump upgrade and TP combo ... Most of the time peeps with TP's get a Stage 1 with tp software ... but since that program demands more fuel to benefit the TP mod , it generaly causes fuel cuts at higher RMPS/ or MPH I believe.
From what I have seen at APR Dealers is
-91/93 octane program
-91/93 oct with tp
-91/93 oct with Fp & Tp

Above mentioned in both Trip Tranny program and 6 speed manual. Yes there is actually a file for the trip tranny and one for a 6mt in all of the above configurations. If Mike @ Apr would like to correct this please do! Your input would be great Mike !

[supamannn99]

is giac-x stage 2?

[VZWalex]

is giac-x stage 2?

nope I had GIAC X b4 I switched to APR .. its basically the same as any other Stage 1 software *some hp and tq numbers may vary* since every car is different

[supamannn99]

i think im gonna switch to either revo or apr but i dont know the cheapest way to do it