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#1 |
Scooby Newbie
Member#: 428133
Join Date: Aug 2015
Chapter/Region:
MWSOC
Location: Chicago Suburbs
Vehicle:2015 WRX White |
![]() Hey everyone. I have a 2015 WRX, and a Cobb AP that I've been running the Stage 1 93 OTS map for about 10,000 miles now.
I'm planning to pick up a Grimmspeed Catless J-Pipe this weekend... Will I be able to use the Stage 2 OTS tune from Cobb, at least until I get a proper tune done? Should I be considering at least an e-tune right away? I know Cobb Stage 2 is tuned for catted pipes, so what kind of risk am I taking with a catless pipe in the same configuration? Thanks!
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#2 |
Scooby Newbie
Member#: 437769
Join Date: Jan 2016
Chapter/Region:
Tri-State
Location: Pa
Vehicle:2015 WRX (6MT) Galaxy Blue Pearl |
![]() I installed my catless turbo back thunder exhaust with the stage 2 it's map. It ran just as expected. I would always recommend a pro tune if you are satisfied with the power level. Or you can do an e tune by brentuning or someone similar if you plan on adding more later.
A pro/e tune will be a better option than the ots map. I find the ots maps act like a bandaid until you get something professionally done for power and reliability.I am working with brentuning with an e tune and blown away by the results. It's 250 for an e tune. |
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#3 | |
Scooby Newbie
Member#: 428133
Join Date: Aug 2015
Chapter/Region:
MWSOC
Location: Chicago Suburbs
Vehicle:2015 WRX White |
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#4 |
Medium Frank
Moderator Member#: 140114
Join Date: Feb 2007
Chapter/Region:
MAIC
Location: Common Sense, VA
Vehicle:2013 Audi A6 3.0T |
![]() Nothing wrong with an OTS map if you follow the map notes, having not read them for the DIT motor I still have a feeling it does not mention that catless is okay.
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#5 |
Scooby Newbie
Member#: 393706
Join Date: Jun 2014
Location: Santa Rosa Beach, FL
Vehicle:2015 WRX Crystal White Pearl |
![]() Ran my catless setup with the COBB stage 2 OTS map for 18k with no problem.
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#6 |
Scooby Specialist
Member#: 116557
Join Date: Jun 2006
Chapter/Region:
NESIC
Location: Buffalo, NY
Vehicle:2016 WRX 6MT Ice Silver Metalic |
![]() I did catless exhaust when I first went stage 2. I emailed cobb about running catless though the map notes say you should use a hi flow cat. Cobb said it was no problem to run It catless.
Do your self a favor and spend the extra $250 and get an e-tune through bren. Best money I ever spent |
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#7 | |
Scooby Newbie
Member#: 417953
Join Date: Apr 2015
Chapter/Region:
MWSOC
Location: Novi, Michigan
Vehicle:2015 WRX WRB |
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#8 | |
Scooby Specialist
Member#: 116557
Join Date: Jun 2006
Chapter/Region:
NESIC
Location: Buffalo, NY
Vehicle:2016 WRX 6MT Ice Silver Metalic |
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I'm half way through the tune now and the car is just insane. So smooth. |
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#9 |
Scooby Specialist
Member#: 37003
Join Date: May 2003
Chapter/Region:
MWSOC
Location: Twin Cities
Vehicle:2015 WRX DGM |
![]() Skip the e-tune and get your car pro-tuned in person by a reputable shop. Even if you have to drive a ways to get it done. Best advice I can give you.
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#10 | |
Scooby Newbie
Member#: 161824
Join Date: Oct 2007
Chapter/Region:
MWSOC
Location: Caledonia(Racine), Wisconsin
Vehicle:15 WRX. Pro-tuned Way too blue... |
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Once I had all my stuff installed I went and got a dyno-tune from IAG's tuner (I highly recommend a dyno-tune as a permanent solution once all your parts are installed). Good luck & have fun with your build! |
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#11 | |
Scooby Newbie
Member#: 428133
Join Date: Aug 2015
Chapter/Region:
MWSOC
Location: Chicago Suburbs
Vehicle:2015 WRX White |
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Believe me, if money wasn't an object, I'd be at P&L in a heartbeat. But at $650 for a protune, when I haven't even acquired all the parts I want yet, is just stupid. For $200-250 I can get a quality e-tune that'll be safer than any OTS map I can run, and I can get revisions and updates when I add parts too (like an intake, or a turboback, or whatever). If I get tuned at P&L right now, that's $650. If I add an intake, that's another $650. Sorry, but that doesn't make financial sense right now. Down the road when I'm satisfied with the power? Then I'll make an appointment with JR. |
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#12 |
Scooby Newbie
Member#: 437769
Join Date: Jan 2016
Chapter/Region:
Tri-State
Location: Pa
Vehicle:2015 WRX (6MT) Galaxy Blue Pearl |
![]() It sounds like you figured out what to do Duk. Good luck!
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#13 | |
Scooby Guru
Member#: 117767
Join Date: Jun 2006
Chapter/Region:
RMIC
Location: Denver, CO
Vehicle:2014 Audi S4 DP Stage 2 (~420whp) |
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Don't get me wrong, a good dyno tune is a great way to go. But as time has progressed, technology has advanced and tuners have adapted, etunes are now as good or better than a dyno tune since they also take into account real world road conditions. Now, if you are going beyond Stage 2+ levels of power and upgrading a turbo and/or putting in a built motor, then a proper dyno tune right off the bat is still the best option. But until you get to that point, there is absolutely nothing wrong with getting a proper etune from a reputable tuner. |
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#14 |
Scooby Specialist
Member#: 37003
Join Date: May 2003
Chapter/Region:
MWSOC
Location: Twin Cities
Vehicle:2015 WRX DGM |
![]() You get what you pay for. I've had couple e-tunes and now pro-tuned on the dyno - night and day difference and I'm "only" stage 2. Stay away from e-tunes, kids.
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#15 | |
Scooby Newbie
Member#: 428133
Join Date: Aug 2015
Chapter/Region:
MWSOC
Location: Chicago Suburbs
Vehicle:2015 WRX White |
![]() Quote:
And yeah, I WOULD rather do it in stages, rather than all at once, for a number of reasons. I don't think it's crazy to do an e-tune for now, at all. But I hear you, you definitely do get what you pay for. |
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#16 |
Scooby Specialist
Member#: 418558
Join Date: Apr 2015
Location: Left Coast
Vehicle:2015 WRX |
![]() The newest Cobb Stage 1 and Stage 2 V301 OTS maps seem much better than V2 series, in that there is no or very little fk or fkl, at least with my experience testing the Stage 1 until MAP revises their stage 1 and 2 tune for the new Subaru ECU software (their tunes are fine to use as is , no issue I just decided to test Cobbs Stage 1 V301 out).
You can run that stage 2 OTS Cobb tune for a long time with no real worries at all if you find the power adequate. If you are happy with the power and don't want to spend a lot their is also the option of their Cobb SF intake you can add for additional gain and they have a supporting V301 OTS map for it. However that's about as far as you can go with Cobb, full turbo back or an aftermarket down pipe to oem cbe with a Cobb intake. Last edited by Cisco Kidd; 03-29-2016 at 12:20 AM. |
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#17 |
Scooby Newbie
Member#: 484873
Join Date: Apr 2018
Chapter/Region:
NESIC
Location: Connecticut
Vehicle:2015 WRX Carbon Grey |
![]() Do you know if running the COBB OTS stage 2 map will throw a code with a catless jpipe?
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#18 |
Scooby Specialist
Member#: 393629
Join Date: Jun 2014
Chapter/Region:
W. Canada
Location: Calgary
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![]() Cobb OTS tunes expect a catted J-pipe. If you're gonna run catless I'd get an e-tune. Follow the map notes to a tee, many have experimented, many succeeded, many failed, I personally wouldn't risk it. Get a proper E-tune.
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#19 |
Scooby Newbie
Member#: 452248
Join Date: Aug 2016
Chapter/Region:
MWSOC
Location: Cleveland Ohio
Vehicle:2017 Base WRX WRB |
![]() I would expect that yes it would. I'll check the map in ATR and see if the CEL codes are on or off. I'd be surprised if cobb had them off though. They tend to be cautious with emissions related stuff.
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#20 |
Scooby Newbie
Member#: 484873
Join Date: Apr 2018
Chapter/Region:
NESIC
Location: Connecticut
Vehicle:2015 WRX Carbon Grey |
![]() Thanks for the feedback. I'll probably stick with a catted J pipe just to be safe.
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#21 |
NASIOC Vendor
Member#: 4803
Join Date: Mar 2001
Location: Austin, TX
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![]() A few folks are still referencing this ancient thread so I wanted to chime in - We always recommend using a downpipe with a high-flow or OEM catalytic converter, not only to help meet emissions standards, but also for performance and safety of the car. In some vehicles we support, using a race or non-catted downpipe can cause boost creep, or uncontrollable boost. This is typically something that tuning cannot fix as it is a mechanical issue that can only be resolved with a catted downpipe. None of our OTS maps support cars with a catless downpipe. We recommend welding on a catalytic converter or getting a downpipe with a cat already installed.
[email protected] |
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#22 |
Scooby Newbie
Member#: 506263
Join Date: Sep 2019
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#23 |
Scooby Specialist
Member#: 460907
Join Date: Jan 2017
Chapter/Region:
RMIC
Location: Colorado
Vehicle:2020 Golf GTI |
![]() Read the post directly above yours and reevaluate whether this is a good decision for your car. (Hint: its not).
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#24 |
Scooby Newbie
Member#: 459394
Join Date: Dec 2016
Chapter/Region:
Tri-State
Location: Rochester, NY
Vehicle:2015 WRX Crystal White |
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#25 |
Scooby Newbie
Member#: 457025
Join Date: Oct 2016
Location: Salinas, CA
Vehicle:2018 WRX Limited CWP |
![]() this topic talks about a "catless" downpipe...
so, if i have 2 cats in a system, and decat the first one, leave one cat for the rear , will i be fine on stage 2 ? ( pertaining to a 2005 legacy gt) |
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