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Old 09-12-2018, 12:57 PM   #1
mcursch88
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Default how many 15+ STi's are running COBB AP with stage 1 OTS?

hi,

i am seriously considering purchasing an AP for my 15 STi (from someone in the classifieds).

however, during some research on this site regarding the aforementioned topic led me to believe that my engine will blow up if i install the stage 1 OTS file.

My car is completely stock, minus mudflaps (talking about car mudflaps)

if anyone can shed some insight on the dangers of the stage 1 map that would be fantastic.

-Mark
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Old 09-12-2018, 01:03 PM   #2
carlos.danger
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If the car is completely bone stock, imho, and you are out of warranty, and you plan on leaving it stock, and you plan on selling the car, then leave it alone.

Start modding then start saving for parts that might fail. Plan for the worst, hope for the best.
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Old 09-12-2018, 01:28 PM   #3
mcursch88
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Quote:
Originally Posted by carlos.danger View Post
If the car is completely bone stock, imho, and you are out of warranty, and you plan on leaving it stock, and you plan on selling the car, then leave it alone.

Start modding then start saving for parts that might fail. Plan for the worst, hope for the best.

i have another ~2 years left on my powertrain warranty. later on down the road i would like to have an exhaust, some bolt-ons, and maybe a stage 2 protune. and honestly i dont think i will be selling this car within the next 5 or 6 years.

that being said, how risky is the stage 1 OTS from the access port??
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Old 09-12-2018, 01:38 PM   #4
powder8
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unless its a MY '19 or RA STI with the upgraded internals LEAVE IT ALONE. those motors are known to FAIL and youre asking for trouble. if you do buy an accessport you should also put away an extra $3500. stage 1 isnt worth it over stock and if youre heavily modifying the car dont use cobb go open source.

shameless plug i have an accessport for sale v3 sub 004. message me $425
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Old 09-12-2018, 01:44 PM   #5
mcursch88
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yikes, not lookin good. I guess ill just wait for the exhaust/downpipe and get a pro-tune.

will i need an AP for a pro tune?


i guess im just confused... there has to be people on here running the stock stage 1. will the real slim shady please stand up?
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Old 09-12-2018, 01:52 PM   #6
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Quote:
Originally Posted by mcursch88 View Post
i have another ~2 years left on my powertrain warranty. later on down the road i would like to have an exhaust, some bolt-ons, and maybe a stage 2 protune. and honestly i dont think i will be selling this car within the next 5 or 6 years.

that being said, how risky is the stage 1 OTS from the access port??
In general a stage 1 ots is not considered risky. However, any modification to how your motor runs could cause something to fail.
These motors are incredibly sensitive. Your motor could love the ots tune or your motor could hate it. It is impossible to know.

Just be aware of what you are doing. And if you change any parameter be prepared to fix it.
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Old 09-12-2018, 02:13 PM   #7
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So, to throw this out there, I can say that of the hundred or so cars that I have flashed over the stage 1 OTS maps on that I have not had a call back from any of those customers related to engine failure. The OTS maps are designed in a way that they bring an increase in power but they leave a plush open window so that they don't push the limits of the car. Typically you would run the OTS maps for a bit before getting a professional tune, then it can be dialed in for your car with your mods, since all cars are slightly different from one to the next.
I ran the stage 1 OTS for about 6 months with no issues, hiccups or moments of worry before our tuner gave me the present of a custom tune on the dyno. Even then, no issues.
I think carlos.danger said it best:
Quote:
Originally Posted by carlos.danger View Post
Plan for the worst, hope for the best.
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Old 09-12-2018, 03:31 PM   #8
mcursch88
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Quote:
Originally Posted by carlos.danger View Post
In general a stage 1 ots is not considered risky. However, any modification to how your motor runs could cause something to fail.
These motors are incredibly sensitive. Your motor could love the ots tune or your motor could hate it. It is impossible to know.

Just be aware of what you are doing. And if you change any parameter be prepared to fix it.
i agree 100% having a plan for the worst would ensure that in he event my engine blows, i will be able to put up funds for another (would obviously rather not have to) but thats what comes with the territory and the car that i chose to buy.
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Old 09-12-2018, 03:33 PM   #9
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Quote:
Originally Posted by slowstipj View Post
So, to throw this out there, I can say that of the hundred or so cars that I have flashed over the stage 1 OTS maps on that I have not had a call back from any of those customers related to engine failure. The OTS maps are designed in a way that they bring an increase in power but they leave a plush open window so that they don't push the limits of the car. Typically you would run the OTS maps for a bit before getting a professional tune, then it can be dialed in for your car with your mods, since all cars are slightly different from one to the next.
I ran the stage 1 OTS for about 6 months with no issues, hiccups or moments of worry before our tuner gave me the present of a custom tune on the dyno. Even then, no issues.
I think carlos.danger said it best:
this is very relieving to see. but please, indulge me, did you run the OTS map on a stock STi? because i have no mods or performance upgrades at all. i just want a little bit more power for now to see how it performs.

what kind of power increase would i see initially?

thanks again!
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Old 09-12-2018, 03:35 PM   #10
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Goodluck man. Dont get me wrong, the stage 1 tune is nice. It makes the car smooth. However, If you're going to do other mods, I would say wait and get the protune all in one shot.
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Old 09-12-2018, 03:35 PM   #11
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I've been on Stage 1+ for about a year now with future mods to come and won't ever look back. Just set money aside for a safety net in case problems arise.
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Old 09-12-2018, 03:47 PM   #12
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Quote:
Originally Posted by mcursch88 View Post
yikes, not lookin good. I guess ill just wait for the exhaust/downpipe and get a pro-tune.

will i need an AP for a pro tune?


i guess im just confused... there has to be people on here running the stock stage 1. will the real slim shady please stand up?
Dude, don't listen to Captain Dander and NosePowder, they are just regurgitating standard internet jargon that represents the vapers that ruined their engines by being brainless and downright abusive to their cars not understanding that launching is bad and rev limiters are not meant to be used like door locks.

OTS tunes are ultra conservative and totally safe. RPM kills these engines. If you want to shift at 6500 rpm's in every gear, yes, you are going to have issues because you didn't pay 85k for your car, you got what you paid for rather.

I have 70,000 on my STI now and I put a stage 1 OTS tune on it basically immediately. I used the 91 octane tune and run 93 octane ONLY, because I wanted an additional safety factory being I plan on putting 200k on the car, plus I found the 91 octane tune to be awesome anyway so I didn't feel the need to push it.
Peak boost comes in a solid 1000 rpm's sooner than stock, and it reaches 3 psi higher than stock, all making a huge difference.
I go WOT in any gear, any rpm on a daily basis, the only thing I don't do is peg the rev limiter.
My engine consumes ZERO oil to present day, runs perfectly and has no issues at all.

Don't be scared away by baseless nonsense. Guys who fry their engines do it to themselves by beating the living hell out of their car and then take no responsibility for it.
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Old 09-12-2018, 06:20 PM   #13
mcursch88
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Quote:
Originally Posted by rtv900 View Post
Dude, don't listen to Captain Dander and NosePowder, they are just regurgitating standard internet jargon that represents the vapers that ruined their engines by being brainless and downright abusive to their cars not understanding that launching is bad and rev limiters are not meant to be used like door locks.

OTS tunes are ultra conservative and totally safe. RPM kills these engines. If you want to shift at 6500 rpm's in every gear, yes, you are going to have issues because you didn't pay 85k for your car, you got what you paid for rather.

I have 70,000 on my STI now and I put a stage 1 OTS tune on it basically immediately. I used the 91 octane tune and run 93 octane ONLY, because I wanted an additional safety factory being I plan on putting 200k on the car, plus I found the 91 octane tune to be awesome anyway so I didn't feel the need to push it.
Peak boost comes in a solid 1000 rpm's sooner than stock, and it reaches 3 psi higher than stock, all making a huge difference.
I go WOT in any gear, any rpm on a daily basis, the only thing I don't do is peg the rev limiter.
My engine consumes ZERO oil to present day, runs perfectly and has no issues at all.

Don't be scared away by baseless nonsense. Guys who fry their engines do it to themselves by beating the living hell out of their car and then take no responsibility for it.
This...this is exactly what I needed to read. Thank you RTV.
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Old 09-12-2018, 06:21 PM   #14
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im gunna go your route, with the 91 map as i already run only 93 from sunoco, shell, or mobil.
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Old 09-12-2018, 06:25 PM   #15
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what RTV said^

Shell puts additives in their fuel so I try to avoid that one but Sunoco, exxon, etc are good choices
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Old 09-12-2018, 06:35 PM   #16
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I've been running the stage 1 map on an otherwise stock current gen sti and it made a big difference in power and I've had zero issues in 20k KM.
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Old 09-12-2018, 06:56 PM   #17
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i heard the stage 1 map is safer than stock, the stock map runs lean and stage one puts it on the richer side. rally sport has a video on it

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Old 09-12-2018, 07:15 PM   #18
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I have used a lot of the Cobb OTS map variations (Stage 1 & 2) over the years and they're extremely conservative.

My opinion, like many others that have been a part of this community, would probably agree that the Cobb OTS maps are actually more reliable than the factory Subaru maps. Especially in the early model year generations.

Also, I feel like you need to go stage 2 to experience a WRX/STI to the fullest. My personal opinion of course, but every time I would drive a stock STI (Even the latest gen) the experience felt neutered. Catted DP and AP running Cobb Stage 2 OTS makes a huge difference.
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Old 09-12-2018, 08:21 PM   #19
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Peak power numbers aren't impressive, but that's not what stage 1 is all about. Midrange torque is what stage 1 is about. Think about it. In daily driving, which is what a lot of us use our car for, midrange rpm is where we spend most of our time accelerating from stoplight to stoplight. Stage 1 optimizes boost/AFR in that range. You can really feel the difference with stage 1 compared to stock, especially in S#. Stage 2 goes a bit further with more boost and more midrange torque. Of course, a good dyno tune optimizes boost/AFR for the entire range and is the best tune you can get because it's for your car and your car only. I've enjoyed my car with a dyno tune (Dyna Pack hub dynos) for several years now. Stock to stage 1 to stage 2 to dyno tune, my car gained about 80 lb/ft of torque right where I can enjoy it, in the midrange of the rev band.

Notice I've underlined the word "good". There are tuners out there who like to flaunt peak power numbers at the expense of engine reliability. A heart-to-heart conversation with your tuner to share your intended use of your car is always wise.
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Old 09-12-2018, 10:41 PM   #20
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Quote:
Originally Posted by mcursch88 View Post
this is very relieving to see. but please, indulge me, did you run the OTS map on a stock STi? because i have no mods or performance upgrades at all. i just want a little bit more power for now to see how it performs.



what kind of power increase would i see initially?



thanks again!


I would have to print up the charts again but from stock to stage 1 ots was about 15whp and 50wtq difference.
My car is bone stock minus a catback (which isnít a power adder)
Yes, I ran the ots map on my STi, bone stock.
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Old 09-13-2018, 07:22 AM   #21
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Quote:
Originally Posted by mcursch88 View Post
im gunna go your route, with the 91 map as i already run only 93 from sunoco, shell, or mobil.
I also use exclusively Sunoco. Not that I had some predisposition about Sunoco but because I have a company Sunoco card that I am allowed to use for my personal vehicle, so if I get Sunoco fuel it's free for me, any other station I pay for it.
Easy decision there.
But I have never had anything even close to a problem with Sunoco 93, seems super consistent.
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Old 09-13-2018, 09:47 AM   #22
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just throwing this out there. i have a 2019 and its got all the engine goodies from the RA and a revised stock calibration. in sport or sport # theres more than enough power for the street. if it aint broke... and then your warranty why void your powertrain warranty? its not worth the hastle trust me i did the stage one ots bit in my 2015 wrx and my 2018 wrx yeah there are gains and in that car it was necessary because the stock throttle mapping was so garbage that it was hard to drive the car smoothly at any time. the sti trans, motor, diffs...etc are so much better that in my opinion theres no need to alter them. i mean until i stack up all the parts and money for a tune.

what id do is accumulate stage 2 parts, injectors, turbo, headers...etc put it all on at once and tune it once and be done.
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Old 09-13-2018, 01:13 PM   #23
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Quote:
Originally Posted by powder8 View Post
just throwing this out there. i have a 2019 and its got all the engine goodies from the RA and a revised stock calibration. in sport or sport # theres more than enough power for the street. if it aint broke... and then your warranty why void your powertrain warranty? its not worth the hastle trust me i did the stage one ots bit in my 2015 wrx and my 2018 wrx yeah there are gains and in that car it was necessary because the stock throttle mapping was so garbage that it was hard to drive the car smoothly at any time. the sti trans, motor, diffs...etc are so much better that in my opinion theres no need to alter them. i mean until i stack up all the parts and money for a tune.

what id do is accumulate stage 2 parts, injectors, turbo, headers...etc put it all on at once and tune it once and be done.
while i like this idea, i do want to slowly ease into it. like someone above said. stage 1, to stage 2, then dyno tune. i know it seems like the longer route, but my personality dictates that i take it incrementally so that i can feel the gradual changes that occur as i advance through the modded STi world.
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Old 09-13-2018, 01:15 PM   #24
mcursch88
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Originally Posted by rtv900 View Post
I also use exclusively Sunoco. Not that I had some predisposition about Sunoco but because I have a company Sunoco card that I am allowed to use for my personal vehicle, so if I get Sunoco fuel it's free for me, any other station I pay for it.
Easy decision there.
But I have never had anything even close to a problem with Sunoco 93, seems super consistent.
company card just for gas?! is that all the time, or only when traveling for work?
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Old 09-13-2018, 01:25 PM   #25
mcursch88
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i appreciate all of the help and wise words. especially that video link! thanks!
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