Can You Run APR Stage 2+ With Stock Exhaust?

[AudiOso]

I'm looking into getting my ECU programed and wanted to get the Stage 2+ software, but I only have the TT injectors right now. If I go this route will the test pipe file cause issues with the stock exhaust or can I get away with this in the short-term?

[n7plus1]

i was thinking the same thing? The file wouldnt cause "issues"? i currently have a test pipe so that seems the be the only REAL must have for stage 2+....recommendations are another thing. Any idea what the cost of 2+ is?

[onlyaudis]

Not familiar with stage 2+. is this something new? APR had a stage 1+, Revo had a stage 2 for their bigger injector files.. past that, I thought the turbo was upgraded to a K04..

The factory cat is the biggest restriction once you are running higher boost levels. I run the 034 HFC, with a Techtonics downpipe on my Revo stage 2 car. the rest of my exhaust is stock, and I have had no issues and am making very good power.

You need to be concerned more about heat soak, and will need a fmic if you want to be able to do more than one power run without your IAT's climbing off the charts.

[9744RR]

I'm looking into getting my ECU programed and wanted to get the Stage 2+ software, but I only have the TT injectors right now. If I go this route will the test pipe file cause issues with the stock exhaust or can I get away with this in the short-term?

Yes you can run it with the stock exhaust and there will be no issues especially in the short term but you will be down a little bit on power. You will have to also upgrade you intercooler to keep the intake temps down with all the extra boost (hot air) your little k03 will be pushing out. There will be no use of running a stg 2 file without it because of heat soak. Once your engine heatsoaks you won't be much faster than stock.

[texasboy21]

Like said above you can run it without the testpipe but you wont make as good of power. TP are less than $100 in the classifieds so jump on one when you see it. As for APR's 'stage' names, they recently changed them over so they share the same stage classifications as the B7 and other newer files

[AudiOso]

My current config is stock exhaust as noted, but I'm running the euro spec DSMIC setup. I know that they are still prone to heatsoak in extreme conditions, but this is a daily driver that I just want to improve driveability of. I eventually plan on getting the FI cat and down pipe and mating it to an AWE system, but that probably won't happen until next year. What I'm concerned about is overheating the stock cat with the different tune. I might just go the TP route in the interim since the TP file will be there to keep the ECU from throwing MIL's.

[Teratorn]

As far as I know, below are the APR Stages (not including KO4 and BT) and required components:

Stage I - None required just ECU flash
Stage I+ - Bigger fuel injectors, ECU flash
Stage II - Test pipe/High flow cat, ECU flash
Stage II+ - Test pipe/High flow cat, Bigger fuel injectors, ECU flash

The DV, exhaust, and intercooler are all recommended upgrades that will improve performance, but are not required. From real world experience, the DV should be replaced because the stock one doesn't last long after any flash, and you'll get heat soak without an intercooler. So, you should be fine with the stock exhaust with a Stage II+ file.

[ColinBurger00]

I just got the K04 installed in my car yesterday and I have APR programing, with 3 files stock, 91 octane and 93 octane CAT DELETE... I have a stock exhaust right now and no FMIC, I have that stuff coming next month when im paid again. I have no codes or cels coming up at all. Lots of power still and everything runs fine. I have been in my buddies GTI with a KO4 upgrade and his car has APR exhaust and APR FMIC and it feels way way faster than mine. So im pumped to get the rest of the supporting mods!
I will keep you posted on what the difference feels like when its done!
Evolution racewerks said that the test pipe they have fits right onto the OEM exhaust system so thats gonna run me 200 bucks for now. Will get full exhaust later down the line. Leaves me more money to get a top line FMIC which i consider very important!

[spector]

I'm looking into getting my ECU programed and wanted to get the Stage 2+ software, but I only have the TT injectors right now. If I go this route will the test pipe file cause issues with the stock exhaust or can I get away with this in the short-term?

You wouldn't be getting the 2+ file, you will be getting the 1+ file.

The addition of injectors is what adds the "+" designation, and the only difference between stage I and stage II is whether or not the cat 02 sensor is deleted.

If you go in there with upgraded injectors and no HFC/TP, the program you want will be "1+", which is exactly the same HP as 2+. If you later decide to add a HFC or TP, you will want to upgrade to 2+ to prevent the CEL from the 02 sensor. It will not provide you HP gains, it will merely remove the CEL.

[Doug@FrankenTurbo]

It sounds as though you're saying the two files differ only in the behavior of a warning light. Obviously the lower stage is intended to be used in the presence of catalytic converter back pressure ** but you're saying it's not really optimized in that respect? Take of the cat and WHAM! you've got Stage II+ (featuring a CEL)? It's that simple?

[ocod]

It sounds as though you're saying the two files differ only in the behavior of a warning light. Obviously the lower stage is intended to be used in the presence of catalytic converter back pressure ** but you're saying it's not really optimized in that respect? Take of the cat and WHAM! you've got Stage II+ (featuring a CEL)? It's that simple?

yep. It's that simple. The II+ in the cat delete file(removes CEL) w/BI file. Otherwise it's just I+ if you have the injectors only.

[n7plus1]

i have the cat delete file now on my stage 1?

[secnd2no1]

yep. It's that simple. The II+ in the cat delete file(removes CEL) w/BI file. Otherwise it's just I+ if you have the injectors only.

X2

[ocod]

i have the cat delete file now on my stage 1?

When did you get your tune. Texasboy stated that APR changed their nomenclature a while back.
You're a stage II now buddy. When are you going BI?? The sale is still going on 300 bucks shipped...

[spector]

It sounds as though you're saying the two files differ only in the behavior of a warning light. Obviously the lower stage is intended to be used in the presence of catalytic converter back pressure ** but you're saying it's not really optimized in that respect? Take of the cat and WHAM! you've got Stage II+ (featuring a CEL)? It's that simple?

Just taking off the cat would not be stage II+, it would be stage II. Adding injectors after removing the cat would be stage II+, and that has advanced timing/boost/fueling which put down some more power. The Stage II file (cat delete only) confers no performance gains.

When I was getting flashed to stage II I called APR directly and asked them this. I figured stage II was a CEL delete as well as perhaps some advanced timing, but it is NOT. The only change (again, according to APR) is the CEL removal. Adding the "+" to either stage I or stage II denotes the big injector file and comes with ~15-20hp gains according to APR.

[n7plus1]

When did you get your tune. Texasboy stated that APR changed their nomenclature a while back.
You're a stage II now buddy. When are you going BI?? The sale is still going on 300 bucks shipped...

i have my injectors now...waiting to get them installed and flashed.

[ocod]

i have my injectors now...waiting to get them installed and flashed.

It's like everyone says. You'll feel like you've gotten chipped all over again. Acceleration is so much smoother. Enjoy...

[ColinBurger00]

I just want to get my supporting mods done here in the next 2 months, so I can sell my K04 for dirt cheap and stick in the disco potato. Any idea what the APR stage 3+ is making in regards to WHP on our B6 cars?

[ocod]

I just want to get my supporting mods done here in the next 2 months, so I can sell my K04 for dirt cheap and stick in the disco potato. Any idea what the APR stage 3+ is making in regards to WHP on our B6 cars?

~283.4awhp - 260.4awtq ON PUMP~may be more if on 100oct file he says ~300
according to mmmboost_a4 sig

heres a thread
http://www.audizine.com/forum/showth...Quick-Question

[texasboy21]

I just want to get my supporting mods done here in the next 2 months, so I can sell my K04 for dirt cheap and stick in the disco potato. Any idea what the APR stage 3+ is making in regards to WHP on our B6 cars?

You cannot just purchase the APR stg3 software, they require you to purchase the entire hardware package FYI

[Doug@FrankenTurbo]

It's like everyone says. You'll feel like you've gotten chipped all over again. Acceleration is so much smoother. Enjoy...

What airflows do your MAF sensors show at this level flash? You've got the 380cc injectors, the cat is gone... Are you seeing as high as 175g/s?

[ocod]

What airflows do your MAF sensors show at this level flash? You've got the 380cc injectors, the cat is gone... Are you seeing as high as 175g/s?

couldn't tell you. haven't log'ed
but that should be about right up to 180 iirc

[n7plus1]

officially stage 2+ now, w00t...this is all shes gonna get performance wise...just a little bump and im good...future is just FMIC (obviously) and custom exhaust.

[ocod]

officially stage 2+ now, w00t...this is all shes gonna get performance wise...just a little bump and im good...future is just FMIC (obviously) and custom exhaust.

Hooray!!!!!!!!!!
So, how do u like it..........did they charge a shop fee for reflash? They didn't for me
Throttle respose better huh? I'm already looking for a ko4 for next year when warranty up. Which FMIC were you looking at?
The Boost Brother is inexpensive but core not the best and not efficient for 71R. Used are still 500-600 bucks. and new over 1000K
A4 TSCHUSS found a core ~300 bucks and then buy universeal coupling kit??
Exhaust you can get the MF w/the 4"tips for under 600 bucks which isn't bad from performace peddler on ebay iirc?
At least those are on my wish list.

[ColinBurger00]

You cannot just purchase the APR stg3 software, they require you to purchase the entire hardware package FYI

Im well aware of that....

[ColinBurger00]

Hooray!!!!!!!!!!
So, how do u like it..........did they charge a shop fee for reflash? They didn't for me
Throttle respose better huh? I'm already looking for a ko4 for next year when warranty up. Which FMIC were you looking at?
The Boost Brother is inexpensive but core not the best and not efficient for 71R. Used are still 500-600 bucks. and new over 1000K
A4 TSCHUSS found a core ~300 bucks and then buy universeal coupling kit??
Exhaust you can get the MF w/the 4"tips for under 600 bucks which isn't bad from performace peddler on ebay iirc?
At least those are on my wish list.

I'm thinking of the Evolution racewerks sport FMIC?

[ColinBurger00]

What do most people use in the way of FMIC with there APR stage 3+ cars?

[n7plus1]

Hooray!!!!!!!!!!
So, how do u like it..........did they charge a shop fee for reflash? They didn't for me
Throttle respose better huh? I'm already looking for a ko4 for next year when warranty up. Which FMIC were you looking at?
The Boost Brother is inexpensive but core not the best and not efficient for 71R. Used are still 500-600 bucks. and new over 1000K
A4 TSCHUSS found a core ~300 bucks and then buy universeal coupling kit??
Exhaust you can get the MF w/the 4"tips for under 600 bucks which isn't bad from performace peddler on ebay iirc?
At least those are on my wish list.

ironically enough, i bought a BB FMIC, new, from a local buddy that decided to get rid of his car. Still in boxes, etc. I installed it yesterday and everything thus far is great. i dont understand how MF gets away charging as much as they do for those mufflers...its crazy.

[ColinBurger00]

What is a BB FMIC?

[n7plus1]

boost brothers...check ebay.